Reckless Detective

A body that trades its own defenselessness for a loot-and-swing engine, and the shape of the deal is what makes it work. On defense it is a wall with zero power, contributing nothing to the attack unless you feed it. On offense, each swing offers a choice: sacrifice an artifact or discard a card, and in return you refill your hand and turn a harmless 0/3 into a 2/3 that can actually threaten damage. That conversion rate (a card for a card, plus two power for one turn) means the creature costs you nothing in card economy while it applies pressure, and it rewards decks running artifacts they were happy to spend anyway (Treasure, Clues, expendable fodder) rather than genuine discard fuel. The +2/+0 is transient, resetting each end step, so the attack has to earn its keep every combat; there is no permanent growth to protect, just a repeatable loot trigger stapled to a threat that only exists while it is swinging. The design lands in a familiar red space (aggression that draws through its deck rather than emptying its hand) but ties the draw to a body that is genuinely bad at everything except attacking, which keeps the rate honest without a hard restriction. It is an enabler dressed as a creature: the point is the cards it turns over, and the two extra power is the toll it pays to keep doing it.