Makeshift Mannequin

Reanimation usually sells permanence: pay the price, and the creature is yours for good. This sells you the body at instant speed instead, and the mannequin counter is the rental agreement. The creature comes back fully functional, but it has acquired a fatal weakness: any spell or ability that targets it, yours or an opponent's, sends it straight to the graveyard. That clause does the balancing work that exile-on-death or a tapped-and-can't-attack rider does on other reanimation; here the leash is targetability itself. The strategic axis it opens is the instant-speed window: flash back a blocker mid-combat, ambush an attacker, or rebuild after a board wipe before your opponent untaps, all things sorcery-speed reanimation cannot touch. The counter also cuts both ways for the savvy pilot, since the sacrifice trigger becomes a feature when you want a death effect: targeting your own mannequined creature with anything (a pump spell, a tap ability, a sacrifice outlet that happens to require a target) feeds it to whatever wants creatures dying. The tension the design resolves is reanimation that wants to be reactive rather than inevitable: it trades the guarantee of keeping the creature for the right to bring it back at the only moment a finisher matters. None of that softens the targetability clause into protection: a single removal spell aimed at the returned creature kills it just the same, and any incidental targeting from either side ends the arrangement early.