Deathknell Kami

The pump ability reads like an upside but functions as a built-in expiration date: pay two mana to swing for a single point of evasive damage, and the creature dies during the next end step regardless. That self-destruct is not a drawback so much as the whole point. The Spirit shell this belongs to runs on death triggers, and the soulshift here is calibrated to the cheapest end of that web: when this dies, it fishes back a one-or-less Spirit, the mana dorks and one-drop bodies that prime the next link in the chain. So a creature with no power and a single point of toughness becomes a self-sacrificing recursion node, a flying body you cash in on your own terms to keep the graveyard loop turning. This is how a tribal aristocrats deck gets a reliable death event without ever needing a dedicated sacrifice outlet: bake the sacrifice into the same ability that makes the creature briefly relevant in combat, and tie the payoff to the chain rather than to the body. Read that way, the 0/1 is doing more work dead than alive, which is exactly what a soulshift web wants from its smallest pieces.