Psychosis Crawler

Two reward structures collide in one body. A creature whose stats track your hand size punishes you for spending: empty your hand to develop the board and the Crawler shrinks to nothing. But the second clause inverts the math. Every draw that grows the hand also drains each opponent for a life, so the card stops asking you to hoard and starts asking you to churn. The friction is real: a draw that replaces itself nets zero toughness but still costs the opponents a life, which means the Crawler quietly turns card-neutral cantrips into a clock. Stack enough draw triggers in a single turn and the life loss outpaces what its body alone could ever deliver, and that is where this design lives: as a payoff for refilling, not for sitting still. The wrinkle worth noting is that the life loss is keyed to the draw event, not the card count, so it fires on the draw step, on extra-draw spells, on wheels, on anything that says "draw." It does not care whether you keep the card. That decoupling separates this from a simple hand-size beater: the body wants a full grip, but the trigger only wants motion. A Phyrexian Horror that rewards you for never stopping, sized by the resource it is constantly burning through.