Thoughts on Creating Specific New Cards

Force of Will:

• Start by creating the card for 3UU
• Add the cost reduction code (like affinity) to reduce its cost by 3UU.
• Add code to the 'can this be played' event to check for either 3UU available or a blue card in hand.
• The hand-checking code from brainstorm could be modified to check color instead of type, so check for a blue card.
• When the spell is played, give the user a dialog box if both choices are available, or just force one payment if only 1 is available.
• Again use the brainstorm code to force the user to choose a blue card and RFG it. (and lose 1 life)
• Chain on counterspell. Done.

Equipment

Equipment are basically enchant creatures that have an activated ability to change creatures. So take an enchant creature (say Flight) and...

• Update the manalink/magic stuff to turn the card into an artifact, and enable the 'activated ability' flag.
• In the code....
• Change the code that attaches to a creature when it comes into play to happen on activation instead. (i.e. change 6C to 6D)
• Change so that you can only target creatures you control.
• Remove the 'goes to graveyard code' (the call to 4779f0)
• Add a 74 (can ability be played) section. It can only be played as a sorcery. It should only be active if you have a creature. (copy this call from ashnod's battlegear)
• I don't know any code for 'can only be played as a sorcery', but we at least have the code for 'during your main phase'.
• Add any additional equip costs, such as mana. If you do, make sure to update 6D to charge those costs.
• Add a line in 6D that says if the target is dead, don't unequip the current creature. (I haven't tried this)
• Done.

Here is the patch for an equipment version of flight (no costs, no checks for when to equip)

SKYPATCH
004BE620
000BDC20
277
79
 55
 8BEC
 56
 837D1074
 750A
*E85198F5FF
 E9FE000000
 837D106C
 7578
 8B450C
 39058C397A00
 756D
 8B4508
 3905848C7300
 7562
 6896764D00
 6A00
*E8D038F4FF
 83C408
 BAAC5C7100
*E8F7BCF5FF
 85C0
 7436
 837D0801
 753A
 F6054006790002
 7531
 837E7400
 7507
 832DA8317A0018
 8B4674
 8B4E78
*E8EC33F4FF
 F6462820
 7413
 832DA8317A0063
 EB0A
 C70594F14E0001000000
 E97E000000
 837D1071
 7540
 33C0
*E891ABF5FF
 85C0
 7415
 8B4674
 8B4E78
 884650
 894E04
 C7463801000000
 EB1A
 6A01
 FF750C
 FF7508
*E80B93FBFF
 83C40C
 C70594F14E0001000000
 C6463600
 EB38
 837D1034
 7532
 8B4508
 8B4D0C
*E87733F4FF
 837E3800
 7421
 A18C397A00
 394678
 7517
 8B15848C7300
 395674
 750C
 83F8FF
 7407
 830DB405620020
 33C0
 5E
 C9
 C3