Tenacious Dead

A recursion engine sold as a body, and the body is almost beside the point. Pay one black to put it down; pay one and a black every time it dies to bring it back tapped, repeatable for as long as the mana holds out. The recurring death trigger is what makes it a fixture in graveyard and sacrifice strategies: it feeds an outlet that wants bodies to throw away over and over, and it banks a death event you can cash in on demand. The tapped clause is the restriction that pays for the loop, since it never comes back ready to block or attack, so the value is in the trigger, not in the creature on the table. That separation is the whole design: the Skeleton itself does nothing of note, but the willingness to die and return turns it into a renewable resource for any deck that profits from creatures leaving and entering. It sits in a long line of self-returning black one-drops, the kind of attrition piece that asks to be sacrificed rather than swung, and rewards a board built to convert each return into something else.