Simply enough: are phased-out permanents affected by State based actions.
to my knowledge, there aren't any real cards that could cause this issue, but say this was a card:
Phased DisfigureB
Instant {C}
Target phased-out creature gets -2/-2 until end of turn.
Assuming a targeted Grizzly Bears did not phase in before the end of the turn, would the bear die due to having 0 toughness? Or is it treated as tough it doesn't exist even to the point of state-based actions not checking on it?
Phased Out permanents don't exist so they can't be affected by state-based actions.
This issue can come up quite easily already.
Reality Ripple with any creature with a CDA that can drop its toughness to 0 while the creature is phased out but will let you raise it again before it phases in, Psychosis Crawler as an example where you play every card in your hand then draw more cards somehow.
Considering the narrowness of the card "B Destroy target phased out creature" wouldn't be extreme.
See, the actual problem here is that you're trying to remove phased-out permanents, which is simply new territory for the game. Time and Tide is currently the only card in the game that interacts with phased-out permanents, and that only "toggles" phasing. That you've created a removal spell that ignores the nonexistence of phasing means an entirely new rules structure needs to be in place. Other than the fact that the game does indeed allow cards to interact with phased-out permanents to exist in the first place, there are no existing rules to support what this design tries to do.
You have a couple options here. The first is simply to redesign the card to avoid SBA messiness, either by turning the card into a straight destroy effect or by having the spell force phased-out creatures to phase in. Alternately, you could write propose rules to support this design, including the conundrum of whether or not a nonexistent permanent with hexproof has hexproof.
The card was purely example, the actual issue was with a card with "if this would die, it phases out instead" need indestructibility until EoT or to have the marked damage removed in order to actually function (and would -N/-N card just outright kill it?)
The card was purely example, the actual issue was with a card with "if this would die, it phases out instead" need indestructibility until EoT or to have the marked damage removed in order to actually function (and would -N/-N card just outright kill it?)
Phasing Regeneration? It sounds awesome and works perfectly fine in the rules. As I said it doesn't exist so SBA can't find them to do their nasty business of sending things to the graveyard. And of course, the rules already have effects with durations end and damage falloff phased out permanents.
to my knowledge, there aren't any real cards that could cause this issue, but say this was a card:
Phased Disfigure B
Instant {C}
Target phased-out creature gets -2/-2 until end of turn.
Assuming a targeted Grizzly Bears did not phase in before the end of the turn, would the bear die due to having 0 toughness? Or is it treated as tough it doesn't exist even to the point of state-based actions not checking on it?
This issue can come up quite easily already.
Reality Ripple with any creature with a CDA that can drop its toughness to 0 while the creature is phased out but will let you raise it again before it phases in, Psychosis Crawler as an example where you play every card in your hand then draw more cards somehow.
Considering the narrowness of the card "B Destroy target phased out creature" wouldn't be extreme.
You have a couple options here. The first is simply to redesign the card to avoid SBA messiness, either by turning the card into a straight destroy effect or by having the spell force phased-out creatures to phase in. Alternately, you could write propose rules to support this design, including the conundrum of whether or not a nonexistent permanent with hexproof has hexproof.