Grim Return

The instant-speed timing window is the entire pivot here. Reanimation in black is overwhelmingly sorcery-speed work: big-payoff spells you sequence into your own setup. This one waits, and it reads only graveyards where a creature arrived from the battlefield this turn, which tethers it directly to combat and removal. A blocker you killed, a creature an opponent traded away, a body that died to a board wipe on the same turn: any of those is fair game, including your own. That breadth is the point. You can claim the opposing attacker you just blocked to death and swing it back, or grab a creature your own sacrifice outlet just ate and put it onto the battlefield untapped at the worst possible moment for the opponent. The condition is exacting on purpose: nothing sitting in a graveyard from a prior turn is legal, so the card cannot loop or dig through a stocked yard the way a flashback reanimator does. It rewards reading the board mid-turn rather than building a graveyard engine. The timing has a hard rule attached, though: you cannot respond to a lethal block or a kill spell on the stack, because the creature card is not in the graveyard until the death actually resolves. You cast it after the death, once the card is sitting there waiting. When that window opens, it converts a trade or a removal exchange into a tempo swing nothing slower in its color can replicate.