Impossible Cards (tracking, discussing, etc.)
Posted: 09 Oct 2016, 18:12
The purpose of this thread is to help track the impossible cards, to group them by reason they are "impossible", and discuss these cards. Perhaps some of them aren't truly impossible and should be removed from the list (which is a good thing). Maybe by grouping them together it will enable us to strategize ways to code some of them.
Please share your thoughts on cards that should be added or removed as well as ideas for coding these. If you disagree with the "reason" categorization, please share that as well so we can make this list the best it can be.
I have not included Unglued, Unhinged, or the challenge decks (Face the Hydra, etc.).
This thread owes a lot to Xander9009's spreadsheet and migookman's post. Thanks guys for creating these!
Some cards are marked "able to be approximated" because they can have their functionality approximated without completely matching their paper counterparts. Cards like this that have already been added to the .wad are not listed.
TOTAL IMPOSSIBLE CARDS: 388
CARDS THAT REQUIRE UPDATING MANY OTHER CARDS: 19
Complete list appears at bottom.
Here is the list, sorted by reason:
COMPLETE LIST OF IMPOSSIBLE CARDS:
Ashiok, Dream Render (requires changing the code on all cards that touch the library)
Aven Mindcensor (requires changing the code on all cards that touch the library)
Cairn Wanderer (requires protection functions to be distributed)
Cephalid Snitch (requires protection functions to be distributed)
Dragon Hunter (requires updates to all cards that grant reach to other cards)
Escaped Shapeshifter (requires protection functions to be distributed)
Karplusan Minotaur (would need all flip a coin cards coded to trigger for flip wins and losses)
Krark's Thumb (would need all flip a coin cards coded to somehow trigger this)
Leonin Arbiter and Mindlock Orb (require coding to all search library cards)
Leonin Shikari (would require coding to all Equipment cards to handle this)
Muraganda Petroglyphs (would require coding added to all vanilla cards and those that cause loss of abilities)
Nahiri, Storm of Stone (requires changing the cost code of all equipment cards to check for her presence)
Shadow of Doubt (see this post)
Runic Repetition and Tombfire (Requires coding all Flashback cards with a custom characteristic)
Stabilizer (Requires coding all cards that include cycling)
Tsabo's Web (Requires coding all lands with activated abilities)
CARDS THAT ARE ABLE TO BE APPROXIMATED:
Please share your thoughts on cards that should be added or removed as well as ideas for coding these. If you disagree with the "reason" categorization, please share that as well so we can make this list the best it can be.
I have not included Unglued, Unhinged, or the challenge decks (Face the Hydra, etc.).
This thread owes a lot to Xander9009's spreadsheet and migookman's post. Thanks guys for creating these!
Some cards are marked "able to be approximated" because they can have their functionality approximated without completely matching their paper counterparts. Cards like this that have already been added to the .wad are not listed.
TOTAL IMPOSSIBLE CARDS: 388
CARDS THAT REQUIRE UPDATING MANY OTHER CARDS: 19
Complete list appears at bottom.
Here is the list, sorted by reason:
- Ability Cost | Open
- Ability Gain | Open
- Ability Redirection | Open
- Ability Targeting | Open
- Activated Ability on Stack | Open
- Altering Card Text | Open
- Ante | Open
- Attack, Pay to | Open
- Attacking alone restriction | Open
- Attacking based on others | Open
- Attacking Restriction | Open
- Attacking+Blocking Restriction | Open
- Banding | Open
- Banding Token | Open
- Blocking (Becomes blocked) | Open
- Blocking (Considered Blocked) | Open
- Blocking Multiple | Open
- Blocking, Pay To | Open
- Blocking Restriction | Open
- Blocking, Targeted | Open
- Change Cost Based on Targets | Open
- Check for tap symbol | Open
- Combat Damage Assignment | Open
- Control Change Trigger Issues | Open
- Controlling Another Player | Open
- Copy Ability | Open
- Copy A Creature But Retain Name | Open
- Counter An Ability | Open
- Damage, Deciding Combat | Open
- Drafting | Open
- Dropping Cards | Open
- Epic | Open
- Game Restart | Open
- Graveyard Reordering | Open
- Kicker, dual cost | Open
- legendary rule violation | Open
- Library Limitation | Open
- Mana Pool Manipulation | Open
- Mana Spend Restriction | Open
- Meld | Open
- Miscellaneous | Open
- Mulligan | Open
- Outside the Game | Open
- Preventing Sacrifices | Open
- Snow | Open
- Splice | Open
- Sub-Game | Open
- Target Copying, Multiple | Open
- target, forcing a | Open
COMPLETE LIST OF IMPOSSIBLE CARDS:
- Code: Select all
Adarkar Unicorn (mana spend restriction)
Adarkar Windform (snow)
Adventurers' Guildhouse (banding)
Aether Searcher (drafting)
Agent of Acquisitions (drafting)
Alms Collector (multiple card draw manipulation)
Altar of the Lost (mana spend restriction)
Alter Reality (altering card text)
Amulet of Quoz (ante)
Ana Battlemage (Kicker, dual cost)
Angel of Jubilation (ability cost)
Animus of Predation (drafting)
Arcane Savant (outside the game)
Archangel of Tithes (attack, pay to)
Archdemon of Paliano (drafting)
Arcum's Astrolabe (snow)
Arcum's Sleigh (snow)
Arcum's Weathervane (snow)
Artificial Evolution (altering card text)
Assault Suit
Atalya, Samite Master (mana spend restriction)
Avalanche Tusker (blocking, targeted)
Awakening of Vitu-Ghazi (altering card text)
Awesome Presence (blocking restriction)
Ayesha Tanaka (banding)
Azorius Guildmage (counter ability)
Baird, Steward of Argive (attack, pay to)
Balduvian Fallen (ability cost)
Balduvian Shaman (altering card text)
Balduvian Warlord (blocking, targeted)
Barbarian Guides (snow)
Baton of Morale (banding)
Battering Ram (banding)
Battle of Wits (library limitation)
Battlefield Thaumaturge (change cost based on targets)
Beast Walkers (banding)
Benalish Hero (banding)
Benalish Infantry (banding)
Bind (counter ability)
Biomancer's Familiar (ability cost)
Blaze of Glory (blocking multiple)
Boreal Centaur (snow)
Boreal Griffin (snow)
Brago's Favor (drafting)
Brainwash (attack, pay to)
Brisela, Voice of Nightmares (Meld)
Bronze Tablet (ante)
Brothers Yamazaki (legendary rule violation)
Brown Ouphe (counter ability)
Bruna, the Fading Light (Meld)
Brutal Suppression (ability cost)
Burning Wish (outside the game)
Burning-Tree Bloodscale (blocking, targeted)
Butcher Orgg (combat damage assignment)
Caller of the Untamed (outside the game)
Camel (banding)
Camouflage (blocking restriction)
Canal Dredger (drafting)
Catalyst Stone (ability cost)
Cathedral of Serra (banding)
Chandra's Embercat (mana spend restriction)
Chandra's Regulator (copy ability)
Chaos Orb (dropping cards)
Chillerpillar (snow)
Chilling Shade (snow)
Chittering Host (Meld)
Choking Vines (blocking - becomes blocked)
Coalition Flag (target, forcing a)
Coalition Honor Guard (target, forcing a)
Coffin Queen (control change trigger issues)
Cogwork Grinder (drafting)
Cogwork Librarian (drafting)
Cogwork Spy (drafting)
Cogwork Tracker (drafting)
Collective Restraint (attack, pay to)
Comet Storm (Kicker, dual cost)
Contract from Below (ante)
Cooperation (banding)
Cover of Winter (snow)
Cowed by Wisdom (attack, pay to)
Crashing Boars (blocking, targeted)
Cruel Entertainment (control other player)
Crystal Spray (altering card text)
Cunning Wish (outside the game)
Curtain of Light (blocking - becomes blocked)
Custodi Peacekeeper (drafting)
Dark Impostor (ability gain, activated)
Darkpact (ante)
Dazzling Beauty (blocking - considered blocked)
Deal Broker (drafting)
Death Wish (outside the game)
Defensive Formation (damage, deciding combat)
Demonic Attorney (ante)
Diamond Faerie (snow)
Diplomatic Escort (counter ability)
Dire Wolves (banding)
Disallow (counter ability)
Disrupt Decorum (attacking restriction)
Drain Power (mana pool manipulation)
Drought (ability cost)
Ekundu Cyclops (attacking based on others )
Elephant Grass (attack, pay to)
Emblazoned Golem (mana spend restriction)
Emrakul, the Promised End (control other player)
Endless Swarm (Epic)
Enduring Ideal (Epic)
Errand of Duty (banding token)
Errantry (attacking alone restriction)
Eternal Dominion (Epic)
Exalted Dragon (attack, pay to)
Experiment Kraj (copy ability)
Falling Star (dropping cards)
False Dawn (mana spend restriction)
False Orders (blocking - becomes blocked)
Familiar Ground (blocking restriction)
Feral Contest (blocking restriction)
Flooded Woodlands (attack, pay to)
Floodtide Serpent (attack, pay to)
Fluctuator (ability cost)
Fog Patch (blocking - becomes blocked)
Font of Agonies (tracking life payment)
Forbidding Spirit (attack, pay to)
Formation (banding)
Fortified Area (banding)
Fossil Find (graveyard reordering)
Frost Raptor (snow)
Frostwalk Bastion (snow)
Frostwalla (snow)
Garbage Fire (drafting)
Gelid Shackles (snow)
General Jarkeld (blocking restriction)
Ghostly Prison (attack, pay to)
Gisela, the Broken Blade (Meld)
Glacial Plating (snow)
Glamerdye (altering card text)
Glittering Wish (outside the game)
Goblin Artisans (ability targeting)
Goblin Furrier (snow)
Goblin Rimerunner (snow)
Goblin War Cry (blocking restriction)
God-Eternal Kefnet (decrease cost of copy)
Golden Wish (outside the game)
Graf Rats (Meld)
Grip of Chaos (target copying, multiple)
Hanweir Battlements (Meld)
Hanweir Garrison (Meld)
Hanweir, the Writhing Township (Meld)
Havengul Lich (ability gain, activated)
Heartstone (ability cost)
Heat Wave (blocking, pay to)
Helm of Chatzuk (banding)
Hipparion (attack, pay to)
Hunt Down (blocking, targeted)
Hunter Sliver (Provoke ability granted to other creatures)
Icatian Infantry (banding)
Icatian Phalanx (banding)
Icatian Skirmishers (banding)
Icehide Golem (snow)
Illuminate (Kicker, dual cost)
Illusionary Informant (drafting)
Illusionist's Bracers (copy ability)
Immediate Action (drafting)
Imperiosaur (mana spend restriction)
Impetuous Devils (blocking, targeted)
Imprison (check for tap symbol)
Ink-Treader Nephilim (target copying, multiple)
Interdict (counter ability)
Invasion Plans (blocking restriction)
Ironhoof Ox (blocked by more than one)
Iterative Analysis (drafting)
Jeweled Bird (ante)
Karn Liberated (game restart)
Kjeldoran Escort (banding)
Kjeldoran Knight (banding)
Kjeldoran Phalanx (banding)
Kjeldoran Skycaptain (banding)
Kjeldoran Skyknight (banding)
Kjeldoran Warrior (banding)
Knights of Thorn (banding)
Kopala, Warden of Waves (ability cost)
Koskun Falls (attack, pay to)
Krovikan Vampire (control change trigger issues)
Kurkesh, Onakke Ancient (copy ability)
Lazav, Dimir Mastermind (copy creature but retain some abilities)
Leeches (miscellaneous)
Legions of Lim-Dûl (snow)
Leovold's Operative (drafting)
Leviathan (attack, pay to)
Lightning Storm (activated ability on stack) attempted code: https://pastebin.com/HqnxhDY3
Living Wish (outside the game)
Lore Seeker (drafting)
Lurking Arynx (blocking, targeted)
Lurking Automaton (drafting)
Magewright's Stone (check for tap symbol)
Magical Hack (altering card text)
Mairsil, the Pretender (using abilities of multiple exiled cards)
Marble Priest (blocking restriction)
Mark for Death (blocking restriction)
Master of Cruelties (attacking alone restriction)
Master of the Hunt (banding)
Mastermind's Acquisition (outside the game)
Matsu-Tribe Decoy (blocking, targeted)
Meandering Towershell (miscellaneous)
Meddle (target copying, multiple)
Melee (blocking, targeted)
Melting (snow)
Memory Crystal (ability cost)
Mesa Pegasus (banding)
Midnight Scavengers (Meld)
Minamo's Meddling (Splice onto Arcane)
Mind Bend (altering card text)
Mindslaver (control other player)
Mirror Gallery (legendary rule violation)
Mishra's War Machine (banding)
Mizzium Meddler (ability targeting)
Morality Shift (library exchange)
Mountain Stronghold (banding)
Mouth of Ronom (snow)
Muck Drubb (target copying, multiple)
Muzzio's Preparations (drafting)
Myr Prototype (attack, pay to)
Myr Reservoir (mana spend restriction)
Myr Superion (mana spend restriction)
Myr Welder (ability gain, activated)
Naban, Dean of Iteration (copy ability)
Nalathni Dragon (banding)
Nature's Blessing (banding)
Necrotic Ooze (ability gain, activated)
Neverending Torment (Epic)
New Blood (altering card text)
Nicol Bolas, Dragon-God (copy ability)
Nightscape Battlemage (Kicker, dual cost)
Nimble Obstructionist (counter ability)
Noble Banneret (drafting)
Noble Elephant (banding)
Norn's Annex (attack, pay to)
Not of This World (change cost based on targets)
Ohran Yeti (snow)
Okk (attacking/blocking restriction)
Oppressive Rays (ability cost)
Orcish Conscripts (attacking/blocking restriction)
Orcish Squatters (control change trigger issues)
Ouphe Vandals (counter ability)
Outmaneuver (combat damage assignment)
Paliano Vanguard (drafting)
Paliano, the High City (drafting)
Panharmonicon (copy ability)
Phyrexian Ironfoot (snow)
Phyrexian Marauder (attack, pay to)
Phyrexian Snowcrusher (snow)
Pikemen (banding)
Power Artifact (ability cost)
Power Play (drafting)
Precursor Golem (target copying, multiple)
Predatory Focus (combat damage assignment)
Primal Beyond (mana spend restriction)
Psychic Battle (ability targeting)
Pygmy Hippo (mana pool manipulation)
Pyretic Hunter (drafting)
Qarsi Deceiver (mana spend restriction)
Quicksilver Elemental (ability cost)
Radiate (target copying, multiple)
Raging River (blocking restriction)
Rampant Elephant (blocking, targeted)
Ravager Wurm (ability targeting)
Rebirth (ante)
Reclamation (attack, pay to)
Regicide (drafting)
Repeated Reverberation (copy ability)
Reroute (ability redirection)
Rime Dryad (snow)
Rime Transfusion (snow)
Rimebound Dead (snow)
Rimefeather Owl (snow)
Rimehorn Aurochs (snow)
Rimescale Dragon (snow)
Rimewind Cryomancer (counter ability)
Ring of Ma'rûf (outside the game)
Rings of Brighthearth (copy ability)
Ronom Serpent (snow)
Rosheen Meanderer (mana spend restriction)
Rust (counter ability)
Sakashima the Impostor (copy creature but retain some abilities)
Scarred Puma (attacking/blocking restriction)
Scrying Sheets (snow)
Seafarer's Quay (banding)
Season of the Witch (miscellaneous)
Secret Summoning (drafting)
Secrets of Paradise (drafting)
Selfless Squire (miscellaneous)
Sen Triplets (ability restriction; play with hand revealed)
Seraph (control change trigger issues)
Serum Powder (mulligan)
Shahrazad (sub-game)
Shelkin Brownie (banding)
Shield Bearer (banding)
Shifting Borders (Splice onto Arcane)
Silver Wyvern (ability targeting)
Siren Stormtamer (counter ability)
Sisters of Stone Death (blocking, targeted)
Skill Borrower (ability gain, activated)
Skullcrack (miscellaneous)
Slayer's Cleaver (blocking restriction)
Sleight of Mind (altering card text)
Smokebraider (mana spend restriction)
Smuggler Captain (drafting)
Snowfall (snow)
Soldevi Machinist (mana spend restriction)
Soraya the Falconer (banding)
Sorin Markov (control other player)
Sorrow's Path (blocking, targeted)
Spectral Shift (altering card text)
Spellskite (ability targeting)
Sphere of Safety (attack, pay to)
Spiny Starfish (miscellaneous)
Spire Phantasm (drafting)
Squelch (counter ability)
Stalking Yeti (snow)
Standard Bearer (target, forcing a)
Stifle (counter ability)
Stormscape Battlemage (Kicker, dual cost)
Street Savvy (miscellaneous)
Strength of the Tajuru (Kicker, dual cost)
Strionic Resonator (ability targeting)
Summary Dismissal (counter ability)
Sunscape Battlemage (Kicker, dual cost)
Suppression Field (ability cost)
Swirl the Mists (altering card text)
Tale's End (counter activated/triggered ability)
Talruum Piper (blocking restriction)
Tangle Angler (blocking, targeted)
Tawnos, Urza's Apprentice (copy abilities)
Teferi's Protection (everything phases out)
Teferi's Response (counter ability)
Tempest Efreet (ante)
Teremko Griffin (banding)
Teysa Karlov (copy ability)
Thermal Flux (snow)
Thermopod (snow)
Thought Hemorrhage (mana pool manipulation)
Thousand-Year Elixir (ability cost)
Thran Turbine (mana spend restriction)
Thunderscape Battlemage (Kicker, dual cost)
Timber Wolves (banding)
Timmerian Fiends (ante)
Tithe Taker (ability cost)
Tolaria (banding)
Torchling (altering card text)
Tower Above (blocking restriction)
Training Grounds (ability cost)
Trait Doctoring (altering card text)
Trickbind (counter ability)
Tromokratis (blocking restriction)
Trove of Temptation (attacking restriction)
Trumpeting Armodon (blocking, targeted)
Turntimber Basilisk (blocking, targeted)
Undying Flames (Epic)
Unexpected Potential (drafting)
Unholy Citadel (banding)
Upwelling (mana pool manipulation)
Urza's Avenger (banding)
Urza's Engine (banding)
Viscerid Drone (snow)
Vivien, Arkbow Ranger (outside the game)
Voidmage Husher (ability targeting)
Voidslime (counter ability)
Volatile Chimera (outside the game)
Volunteer Reserves (banding)
Vortex Elemental (blocking restriction)
Wall of Caltrops (banding)
Wall of Shields (banding)
War Cadence (blocking restriction)
War Elephant (banding)
War Tax (attack, pay to)
Whim of Volrath (altering card text)
Whipgrass Entangler (attack, pay to)
Whispergear Sneak (drafting)
Willbender (ability targeting)
Winter's Chill (snow)
Word of Command (control other player)
Worldknit (drafting)
Worldpurge (mana pool manipulation)
Worst Fears (control other player)
Yarok, the Desecrated (copy ability)
Ydwen Efreet (blocking restriction)
Zombie Musher (snow)
Ashiok, Dream Render (requires changing the code on all cards that touch the library)
Aven Mindcensor (requires changing the code on all cards that touch the library)
Cairn Wanderer (requires protection functions to be distributed)
Cephalid Snitch (requires protection functions to be distributed)
Dragon Hunter (requires updates to all cards that grant reach to other cards)
Escaped Shapeshifter (requires protection functions to be distributed)
Karplusan Minotaur (would need all flip a coin cards coded to trigger for flip wins and losses)
Krark's Thumb (would need all flip a coin cards coded to somehow trigger this)
Leonin Arbiter and Mindlock Orb (require coding to all search library cards)
Leonin Shikari (would require coding to all Equipment cards to handle this)
Muraganda Petroglyphs (would require coding added to all vanilla cards and those that cause loss of abilities)
Nahiri, Storm of Stone (requires changing the cost code of all equipment cards to check for her presence)
Shadow of Doubt (see this post)
Runic Repetition and Tombfire (Requires coding all Flashback cards with a custom characteristic)
Stabilizer (Requires coding all cards that include cycling)
Tsabo's Web (Requires coding all lands with activated abilities)
CARDS THAT ARE ABLE TO BE APPROXIMATED:
- Code: Select all
Alive//Well (split card)
Armed//Dangerous (split card)
Assault//Battery (split card)
Beck//Call (split card)
Bound//Determined (split card)
Breaking//Entering (split card)
Catch//Release (split card)
Crime//Punishment (split card)
Dead//Gone (split card)
Down//Dirty (split card)
Far//Away (split card)
Fire//Ice (split card)
Flesh//Blood (split card)
Give//Take (split card)
Hide//Seek (split card)
Hit//Run (split card)
Illusion//Reality (split card)
Life//Death (split card)
Nacatl War-Pride (blocking restriction)
Night//Day (split card)
Odds//Ends (split card)
Ogre Enforcer
Order//Chaos (split card)
Pain//Suffering (split card)
Profit//Loss (split card)
Protect//Serve (split card)
Pure//Simple (split card)
Ready//Willing (split card)
Research//Development (split card)
Rise//Fall (split card)
Rough//Tumble (split card)
Spite//Malice (split card)
Stand//Deliver (split card)
Supply//Demand (split card)
Toil//Trouble (split card)
Trial//Error (split card)
Turn//Burn (split card)
Wax//Wane (split card)
Wear//Tear (split card)
- Code: Select all
2019-07-20 Removed Accursed Witch/Infectious Curse, Blessed Breath, Candles' Glow, Consuming Vortex, Dampen Thought, Desperate Ritual, Elderwood Scion, Everdream, Glacial Ray, Goryo's Vengeance, Hideous Laughter, Horobi's Whisper, Hundred-Talon Strike, Into the Fray, Kodama's Might, Lifted by Clouds, Mirrorwing Dragon, Overblaze, Psychic Puppetry, Reweave, Roar of Jukai, Soulless Revival, Spiritual Visit, Splicer's Skill, Strange Inversion, Through the Breach, Torrent of Stone, Veil of Secrecy, Vital Surge, Wear Away
2019-07-19 Removed Kaervek's Torch. Added these cards to impossible list: Alms Collector; Awakening of Vitu-Ghazi; Baird, Steward of Argive; Chandra's Embercat; Chandra's Regulator; God-Eternal Kefnet; New Blood; Nicol Bolas, Dragon-God; Repeated Reverberation; Tale's End; Vivien, Arkbow Ranger; Yarok, the Desecrated. Added these cards to require coding many other cards list: Aven Mindcensor; Nahiri, Storm of Stone; Ashiok, Dream Render.
2019-06-23 Removed Wall of Shadows; Added Biomancer's Familiar, Font of Agonies, Forbidding Spirit, Ravager Wurm, Teysa Karlov, Tithe Taker
2019-06-20 Removed Arctic Foxes, Cold Snap, Gangrenous Zombies, Gargantuan Gorilla, Snow Devil, Snowblind, Storm Elemental, Withering Wisps; Added Arcum's Astrolabe, Chillerpillar, Everdream, Frostwalk Bastion, Frostwalla, Icehide Golem, Splicer's Skill, Tawnos, Urza's Apprentice.
2018-02-07 Added Lightning Storm.
2018-01-11 Added Disrupt Decorum; Mairsil, the Pretender; and Teferi's Protection.
2018-01-10 Added Kopala, Warden of Waves; Mastermind's Acquisition; Siren Stormtamer; Trove of Temptation.
2017-07-03 Added Nimble Obstructionist and Assault Suit.
2017-01-21 Removed Baral, Chief of Compliance
2017-01-10 Added Baral, Chief of Compliance.
2016-12-11 Added the following to the list of impossible cards: Coffin Queen, Cruel Entertainment, Disallow, Errantry, Krovikan Vampire, Leeches, Master of Cruelties, Meandering Towershell, Orcish Squatters, Rings of Brighthearth, Season of the Witch, Selfless Squire, Seraph, Skullcrack, Slayer's Cleaver, Spiny Starfish, Standard Bearer, Street Savvy, Summary Dismissal, Talruum Piper, Tromokratis, War Tax, Whipgrass Entangler, and Ydwen Efreet. Added the following to the list of cards that require coding of many of other cards: Runic Repetition, Stabilizer, Tombfire, and Tsabo's Web.
2016-10-30 Added the following cards to the Impossible List: Brothers Yamazaki, Butcher Orgg, Camouflage, Choking Vines, Coalition Flag, Coalition Honor Guard, Curtain of Light, Ekundu Cyclops, Emblazoned Golem, False Dawn, Grip of Chaos, Hipparion, Imperiosaur, Imprison, Kaervek's Torch, Magewright's Stone, Marble Priest, Meddle, Mirror Gallery, Mizzium Meddler, Muck Drubb, and Myr Welder. Added Cairn Wanderer, Cephalid Snitch, Dragon Hunter, Escaped Shapeshifter, and Karplusan Minotaur to the cards that require updating other cards list. Experience counter-related cards added in their own list. Oloro, Ageles Ascetic added to Commander list. Added Nacatl War-Pride and Ogre Enforcer to able to be approximated list.
2016-10-26 Cards that reference Commander are no longer considered impossible. They are listed in this post for reference. Added some cards to the "cards that require updates to many cards" category.
2016-10-26 Removed Demoralize. Added the following cards: Balduvian Fallen, Blaze of Glory, Cathedral of Serra, Experiment Kraj, Ink-Treader Nephilim, Leviathan, Mark for Death, Melee, Myr Prototype, Myr Reservoir, Myr Superion
2016-10-23 - Morality Shift removed since it has been proven possible and coded by TheFireMind (thanks!); Added the following cards: Arcum's Sleigh and Primal Beyond.
2016-10-22 - Added new list "Cards that require updating many other cards" for cards that are possible, but require updating many other cards. Also added the following cards: Angel of Jubilation, Awesome Presence, Battlefield Thaumaturge, Outmaneuver, Predatory Focus, and Psychic Battle.
2016-10-21 - Added the following cards: Adarkar Unicorn, Altar of the Lost, Amulet of Quoz, Ana Battlemage, Atalya, Samite Master, Balduvian Warlord, Endless Swarm, Enduring Ideal, Eternal Dominion, Neverending Torment, Orcish Conscripts, Precursor Golem, Quicksilver Elemental, Radiate, Reclamation, Scarred Puma, Undying Flames
2016-10-12 - Cards in the following categories removed because they are possible: ability cost - dual, bidding, choose number, Epic, Haunt, items, mana doesn't empty, selective player targeting, set-specific. Charging Rhino and Stalking Tiger were also removed. Split-cards moved to "able to be approximated" section. Added to the impossible list: Accursed Witch/Infectious Curse, Elderwood Scion, and Seer's Vision. "Copy a creature but retain abilities" changed to "copy a creature but retain name." New category called "change cost based on targets" was added.
2016-10-09 - added the following cards: Adarkar Windform, Æther Searcher, Agent of Acquisitions, Alive//Well, Animus of Predation, Arcane Savant, Archdemon of Paliano, Caller of the Untamed, Comet Storm, Cowed by Wisdom, Custodi Peacekeeper, Exalted Dragon, Floodtide Serpent, Garbage Fire, Ghostly Prison, Goblin Artisans, Hide//Seek, Illusionary Informant, Leovold's Operative, Matsu-Tribe Decoy, Nalathni Dragon, Noble Banneret, Paliano Vanguard, Pyretic Hunter, Rampant Elephant, Regicide, Smuggler Captain, Spire Phantasm, Tangle Angler, Trumpeting Armodon, Volatile Chimera, Vortex Elemental
2016-10-09 - added the following cards: Angelic Field Marshal, Arctic Foxes, Arcum's Weathervane, Bastion Protector, Cold Snap, Command Beacon, Command Tower, Commander's Sphere, Gangrenous Zombies, Gargantuan Gorilla, Goblin Furrier, Karplusan Giant, Kjeldoran Guard, Melting, Opal Palace, Rime Dryad, Rimewind Taskmage, Ronom Serpent
2016-10-09 - added Strength of the Tajuru to Kicker, Dual Cost
2016-10-09 - list created