Erebos's Emissary

The two-for-one is the tax every creature-enchanting Aura used to pay: point removal at the host and the buff dies too, netting the opponent a clean card. This design refuses that trade. Paid for its bestow cost of , it becomes an Aura granting +3/+3, but if the host leaves, it doesn't follow the body to the graveyard: it detaches and stays behind as a 3/3 Snake. Your investment survives the obvious kill spell aimed at the creature underneath it. (It is not invulnerable; a removal spell targeting the Aura itself while it's attached still finishes it off.) The discard ability is what earns the rate at both ends. Pitching a creature card grants +2/+2, to the enchanted creature when this is an Aura or to this permanent when it's on its own, so a hand clogged with creatures you can no longer afford to cast turns into combat pressure, while the discards stock a graveyard black is usually happy to feed. The steep price on the bestow mode buys flexibility rather than raw stats: the floor is a hard-castable 3/3 that pumps itself and needs no board to matter, and the ceiling is a sticky +3/+3 that makes answering the host a losing exchange for the opponent. A self-contained value piece for a graveyard-leaning black deck, with a live mode wherever you draw it.