I don’t know if it’s inconsistent enough to qualify as a hail mary. P1 Sets is okay if you can find damage elsewhere. If you go for P1 Rook, you’re stuck with a two damage hero either way - Rook just often comes with bird friends to make up the difference. Sets makes up the difference by letting you spam Tech 0/1 units. But yeah, I think less stable than P1 Grave, though I haven’t actually tried it in play.