Yeah that's why I was saying not terrible. It has some "limited use." Get it. Get it.
But yeah it's like, vaguely serviceable, at least. It may actually be on the top half of burn simply because there's so many terrible burn cards out there. I've made decks built around flashback that have gotten good use out of it. The big thing that makes it at least sorta playable there is that it's an instant. I'm pretty sure it's the only instant burn that'll play out of the graveyard outside of flaming gambit.
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No problem!
This is a cute and pop genocide of love!