Amaranth says 'should go to torpor'. Undead persistance does nothing to take away the 'should go to torpor', it just takes away the 'go to torpor'. So it should be possible to play Amaranth at the same time one would play Undead Persistance? (resulting in fact in the diablerie) That is not the question above Correct. It is an entirely new question
Ah, well, now that the unnecessary quotey parts have been properly dispensed with... Yes. Google: persistence amaranth author:LSJ I don't like the answer though.... Too technical for me. To me it would seem you can either Amaranth when someone is under the Undead Persistance influence or you cannot. Allowing it 'at the time played' but not 'later in the combat' is perhaps correct in the technical sense of interporeting wording on cards, but it makes no sense when you think about the effects. Also, a case could be made for a vamp under undead persistance still being under a 'should go to torpor', since that is the condition for it to work in the first place, thus making Amaranth a plausible option all the time. But anyway, nice to have an official answer. //Doc.