Postmortem Lunge

Reanimation usually buys you a creature for keeps; this one rents it for a turn, and the entire spell is built around that asymmetry. The X bills the body's mana value, the haste promises immediate impact, and the exile clause at the next end step ensures you only ever get one swing or one set of triggers out of whatever you drag back. That structure makes it less a recursion engine than a single-use detonator: return a finisher to alpha-strike, a creature with a devastating attack trigger, or a body whose enters-the-battlefield effect was the real prize, then watch it leave at end of turn. The life-payment option on the colored pip is the wrinkle that widens its reach: by letting the price be settled in two life rather than a black source, the spell stays castable in shells with no black at all, turning a mono-color reanimation effect into something an off-color or colorless deck can run as a splash-free package. It is one of the cleanest expressions of the "blink your own graveyard" idea, where the temporary nature of the return is not a drawback to engineer around but the whole point: you are paying for a window, not a resident.