Infernal Countdown, the black/red mythic from Xerava!
The wording’s a bit strange, but this kind of ability has never been done before and I was pretty constrained for space. Open to thoughts on how to do it right if this doesn’t work for whatever reason.
I just enjoy this card because it’s deliciously cruel and almost feels like some divine torture scheme. Sure, they can choose the order of the effects, but one might think that once you survive the final strike, it’s over. Nope! It just starts over again. Welcome to eternal torment!