Collectible Card Game Headquarters

Describe the Bug:
When player cast Izzet Charm, unless for using the counterspell effect, the mana spent will be rejected into the mana pool once and the card will go back to hand, then after playing the card a second time the windows choice will pop if there is any choice to be made.

Which card did behave improperly ?
Izzet Charm

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
ONR

What exactly should be the correct behavior/interaction ?
When player cast Izzet Charm, unless for using the counterspell effect, the mana spent will not be rejected into the mana pool once and the card will go back to hand but resolve immediately and show the window choice if there is any choice to be made

Are any other cards possibly affected by this bug ?
-

This is a minor bug maybe due to the counterspell effect, you can recast again the spell but it's still a weird behavior

Describe the Bug:
When Dreg Mangler Scavenge ability is activated from RuleEngine, instead the game show the Unearth ability and Dreg Mangler come back from gy to bf with an empty legacy effect attached to him and will immediately be exiled without giving +1/+1 x 3 counters to target creature.

Which card did behave improperly ?
Dreg Mangler

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
ONR

What exactly should be the correct behavior/interaction ?
When Dreg Mangler Scavenge ability is activated from RuleEngine, +1/+1 x 3 counters is given to target creature and Dreg Mangler is exiled.

Are any other cards possibly affected by this bug ?
-

confirmed, as of ONR it can't be cast even if the mana requirement is met.
If debug cast into bf it will work as intended

Describe the Bug:
Deathrite Shaman's code is borked. I can't even get it to be broken consistently. Sometimes it only lets you "get mana". Sometimes it lets you use one of the other abilities, but NOT "get mana". It seems like "get mana" supersedes the others, maybe? Sometimes, particularly if you hit "cancel", it asks for two green mana. And then it shows your graveyard and asks you to pick an instant/sorcery. The lose-2-life ability seems to work. In any case, it never lets you pick the opponent's graveyard, even if they have a land, a creature, and a sorcery, and your graveyard is empty.

Also, it doesn't show up in the Green Creatures list when "putting a specific card into play" although it gets the bonus from Kaysa and can be found with Green Sun's Zenith. Probably not a problem.

Which card did behave improperly ?
Deathrite Shaman

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Ravnicas

What exactly should be the correct behavior/interaction ?
It should function

Are any other cards possibly affected by this bug ?
Probably not

Describe the Bug:
- All Keyrunes can generate colorless mana
- Animated Izzet Keyrune ability does not trigger when dealing combat damage to player (draw & discard 1 card)

Which card did behave improperly ?
Azorius Keyrune
Golgari Keyrune
Izzet Keyrune
Rakdos Keyrune
Selesnya Keyrune

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
ONR

What exactly should be the correct behavior/interaction ?
- All Keyrunes cannot generate colorless mana
- Animated Izzet Keyrune ability does trigger when dealing combat damage to player (draw & discard 1 card)

Are any other cards possibly affected by this bug ?
-

Describe the Bug:
Falkenrath Exterminator's activated ability can't be activated.

Which card did behave improperly ?
Falkenrath Exterminator

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
ONR

What exactly should be the correct behavior/interaction ?
You should be able to use the activated ability if you have the mana.

Are any other cards possibly affected by this bug ?
no

Describe the Bug:
When a creature dealt damage by vein drinker dies, vein drinker doesn't get a +1/+1 counter.

Which card did behave improperly ?
Vein Drinker

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
ONR

What exactly should be the correct behavior/interaction ?
When a creature dealt damage by vein drinker that turn dies, Vein Drinker should get a +1/+1 counter.

Are any other cards possibly affected by this bug ?
no

Note: In the save game there is a Mephidross Vampire in play whose ability works with other creatures but not with the Vein Drinker, so maybe it is an interaction.

Stassy most of the times works fine for me only few times when auto-tapping is that behaviour.
There is a bug that Izzet Charm can counter creature spells,too.

Weird, it happen to me even if I don't autotap, it just do it once for each Izzet Charm...

Whops, I accidentaly corrupted the code for Cascade, Bloodbraid Elf and the other cards with cascade are affected V2 on next weekend, damn.

Fixed.

Fixed the confirmed bug.

Fixed.

Could you please test with other creatures with infect + triggered ability on damaging ?
Also, try to give infect to a creature with a triggered ability on damaging.

Fixed.