False Demise

Death becomes theft here: the aura's trigger fires when the enchanted creature dies, returning it under your control rather than its owner's, and that change-of-control framing is what gives the card two completely different jobs. On your own creature it reads as insurance, a way to blunt removal and recur an enters-the-battlefield body. On an opponent's, it becomes a delayed Control Magic that waits for combat, a sacrifice effect, or a removal spell to separate the creature from its owner. The second mode is the more interesting one, because it asks you to pick a target you expect to die and then let the table or the board state pull the trigger. The cost of that patience is the standard aura tax doubled: enchant a creature that gets exiled, bounced, or otherwise leaves without dying, and you have spent a card on nothing. Blue's reanimation has grown far more sophisticated since this early swing at the idea, but the core conceit (an aura that reads a death event as a control event) is a clean, durable piece of design that has been revisited in spirit many times over.