Mortus Strider

A blocker that never actually stays dead. The trade most chump-blocks make is a one-for-one tempo concession: your creature dies, theirs survives, and you are down a card. This Skeleton refuses the second half of that bargain by returning to your hand when it dies, which turns it into reusable, sorcery-paced defense you can recast for three mana each time. The body is small and the recursion is not free (replaying it spends a turn's worth of mana every loop), so the real value lives in repetition rather than any single block. That same death-return makes it fodder by design: a willing sacrifice for any outlet that wants bodies fed to it, and it comes back to be sacrificed again, a renewable trigger source for engines that reward creatures leaving play. What defines the card is that the recurrence is automatic on death rather than a graveyard ability you have to pay to activate: there is no mana hurdle to clear at the moment it dies, just a triggered round-trip. That trigger is not invulnerable, though. When it dies, the creature still goes to the graveyard and the ability goes on the stack, so opponents get a window to respond before it bounces (exiling it from the yard, for instance, leaves nothing to return). The loop is durable, not unbreakable: it asks an opponent to find graveyard interaction rather than simply outvalue it.