Vulturous Aven

Exploit folded the sacrifice outlet directly into the enters trigger, solving a long-standing friction in sacrifice-value decks: how to let a board of small creatures cash in without committing a separate card to the outlet. The body and the engine arrive together, and this is the curve-friendly draw payoff the mechanic was built to showcase. The exploit is optional, which carries more weight than it looks: with no spare creature to feed it, you simply keep a 2/3 flier, an evasive body that asks nothing of the board. Feed it a token, a creature already dying, or fodder you were glad to lose, and you turn that body into two fresh cards. The two life you pay is the cost that keeps the refuel from being free, and it sits comfortably in aristocrats shells that already want death triggers: the sacrificed creature can leave a parting gift, and the cards you draw refill behind it. The shape is the durdle-resistant version of the card-advantage sacrifice creature, since the value is bolted to a single entry rather than a repeatable loop. There is no engine to grind, no outlet to protect, no incremental drain to wall off. It does its work once, decisively, and then commits the flier to the air to close.