Avarice Amulet

A card-draw engine you bolt onto a creature, with a curse attached. Once equipped, the +2/+0, vigilance, and a card each upkeep make the bearer a genuine threat, but the death trigger is the bill: kill the equipped creature and control of the Amulet passes to a target opponent, who can attach it to their own attacker and start drawing off it themselves. The wrinkle is that the transfer keys specifically off the creature dying. An ordinary Equipment whose bearer dies simply falls off, unattached and still yours, waiting for the next creature; here, dying hands the object to someone else. That gives the Amulet a strategic seam most removal-proofing advice misses. Bounce it back to your hand, blink it, exile the creature, or lock it down with a pacifism effect, and the Amulet stays yours, because none of those is a death. It is only lethal answers (a burn spell that finishes off the carrier, a block that eats it, an edict) that turn your engine into a gift. That narrows the political calculus at a multiplayer table considerably: the "target opponent" clause makes combat math a negotiation about who inherits the draw engine, but only when the creature is actually being killed. The design lineage is the cursed-bounty artifact, an object too good to leave on the board that costs you to keep, and the Amulet pays its bill not in life or mana but in the risk that a well-aimed kill spell redistributes the value rather than removing it.