Remove Hidden Keywords Meta Issue

[Hanmac]

This is a Meta Issue for all the others refering Hidden Keywords that needs to be refactored, either as ReplacementEffect=CantHappen or as Static Ability that doesn't use Layer

• IgnoreLandwalk Landwalk and related ignore abilities, also CantBlockBy Rework for DefendingPlayer #2507
• CARDNAME can't be regenerated Regenerate API Changes and RegenerationTrigger #3304
• Block as If Shadow Shadow use CantBlockBy and static abilities #2550
• Can't Untap Kamigawa tap lands don't work correctly when changing control. #984 Can't Untap effects needs to be rewritten #6011
• CARDNAME's power and toughness are switched , this probably can be done as flags instead of keyword? should also use Layer? Switch PT as better Pump Effect #3555
• ManaConvert May spend mana as though it were mana of any type to cast CARDNAME, May spend mana as though it were mana of any color to cast CARDNAME Refactor ManaConvert and similar into Static Abilities #3679
• All creatures able to block CARDNAME do so. & CARDNAME must be blocked if able.
• CARDNAME can't be countered. CantCounter Rework #2688
• CARDNAME assigns no combat damage Assigns no combat damage as StaticAbility #5992
• Colorless Damage Source Colorless Damage Source as StaticAbility #5994
• Bands with Other needs to be Keyworded better Keyword: add 'Bands with other' keyword #5950
• CARDNAME can't attack or block.
• CARDNAME's activated abilities can't be activated.
• AttackRestriction should be moved to StaticAbilityCantAttackBlock #6000
• During your next untap step, as you untap your permanents, return CARDNAME to its owner's hand.
• Counters remain on CARDNAME as it moves to any zone other than a player's hand or library.

Both CARDNAME can't attack or block. and CARDNAME's activated abilities can't be activated. are tricky because of
Volrath's Curse and Lost in Thought having ignore this effect on them, so they either needs to be one static ability, or some trickery

See also for Global Rules #2544

[Hanmac]

currently Heart of Kiran isn't directly a hidden keyword, but its ability still should be reworked into a better way to replace the cost

see the other cost replacer:

• "CyclingForZero" (Activation)
• "You may pay 0 rather than pay equip costs." (Activation)
• "You may pay 0 rather than pay the echo cost for permanents you control." (Effect)

[tool4ever]

After all are finished the logic for isStackingKeyword can also be changed to use Keyword class information instead of ugly NonStackingKWList.txt

[Hanmac]

@tool4ever i already started this with KeywordInterface.redundant

also related to CardTextChanges, i want the keyword teach about what part of the Keyword should be affected by Text Changes, so it would simplify this issue: #2512

If you want you can try to update the CantUntap stuff again (using CantHappen Replacement?)

[tool4ever]

about IgnoreEffectCost$:
the other 2 cards that use it to affect Players wouldn't really need to be done as Continuous either

• so the logic for it could be moved to work on generic StaticAbility instead
• to avoid some redundant code the CantSearchLibrary stuff should also be Static instead of RE
• this would allow cleaning up adding statics on Players (only used by Damping Engine it seems)
  • to make this work we might consider supporting more than one mode together, e.g. Mode$ CantPlayLand, CantBeCast

[Hanmac]

Yeah, the IgnoreCost is somewhat tricky, but I would like to see you try it

For the enchant creature ones, doing a Static that gives itself another Statics might not big of a problem

For the Player ones, yeah, I recently stumbled upon the Player addStatic thing only used for Damping Engine and I would happily remove it