Heya heya!
I was just playing my brother in a game and had something come up we did not know what would happen so figured I would ask and see.
Say my opponent has a Cockatrice and I steal it with Act of Treason then proceed to mutate it. Would you get to keep the new creature if you put their guy under the new creature or would it go back to them at end of turn?
We ran into this issue and could see it go either way. I was thinking you get to keep it but he was thinking it would go back at end of turn.
Any help would be much appreciated!
Best regards,
PreTeenies
Cockatrice will still revert to your opponent's control when Act of Treason's effect wears off, even if Cockatrice "mutated" in the meantime.
Remember that a mutating creature spell, such as Archipelagore, doesn't enter the battlefield as a separate permanent, but rather becomes part of the permanent it targets, changing its characteristics. "Mutating" a permanent doesn't change control of that permanent or end any continuous effects on that permanent without more, and that permanent remains the same permanent for the purposes of effects (C.R. 721.2c).
Note, however, that mutate lets a spell target only a "non-Human creature with the same owner as" that spell (C.R. 702.139a). Thus, in general, you can't cast a mutating creature spell targeting Cockatrice unless Cockatrice and that spell have the same owner.
I was just playing my brother in a game and had something come up we did not know what would happen so figured I would ask and see.
Say my opponent has a Cockatrice and I steal it with Act of Treason then proceed to mutate it. Would you get to keep the new creature if you put their guy under the new creature or would it go back to them at end of turn?
We ran into this issue and could see it go either way. I was thinking you get to keep it but he was thinking it would go back at end of turn.
Any help would be much appreciated!
Best regards,
PreTeenies
Remember that a mutating creature spell, such as Archipelagore, doesn't enter the battlefield as a separate permanent, but rather becomes part of the permanent it targets, changing its characteristics. "Mutating" a permanent doesn't change control of that permanent or end any continuous effects on that permanent without more, and that permanent remains the same permanent for the purposes of effects (C.R. 721.2c).
Note, however, that mutate lets a spell target only a "non-Human creature with the same owner as" that spell (C.R. 702.139a). Thus, in general, you can't cast a mutating creature spell targeting Cockatrice unless Cockatrice and that spell have the same owner.