Grave-Shell Scarab

Dredge gave the graveyard a self-replacing engine, and this is the rare member of the keyword's family that pays you to feed it. The sacrifice ability turns the body into a cantrip the moment it has done its work in combat: spend one mana, draw a card, and from the yard the dredge clause offers to bring it back instead of drawing normally. That loop is the whole design. A 4/4 attacks, trades or chips in, then converts itself into card advantage; dredge then reloads it for the cost of a single milled card per cycle. Dredge 1 is the gentlest number the keyword reaches, which matters here because the card wants to recur many times rather than empty a library fast. Where the higher-dredge enablers were built to bury self-mill payoffs in a hurry, this one is built to grind: a green-black value piece that asks only a steady trickle of cards for the privilege of coming back. The cleverness is that recursion engines usually cost a card to keep running, and this one folds that cost into a draw step you were spending anyway. It is the patient end of the mechanic, a card for decks that win by out-attriting rather than out-comboing.