Whirlpool Warrior

A draw-smoothing engine stapled to a fragile body, with a second mode that reaches across the color pie to detonate. The first ability is the personal half: shuffle your hand back and redraw the same number, the classic blue answer to a fistful of dead cards (you do not gain cards, you swap the ones you have for fresh ones). The sacrifice ability is the dangerous one, but read it carefully, because the symmetry is sharper than it looks: each player redraws exactly as many cards as they shuffled in, so the lever only profits you when your own hand is full of clutter and the opponents' grips are thin. Empty your hand to one card first and you draw one back; the trick is to fire it when you hold a fat hand of mediocre cards and they hold few. It is a one-shot, not a recurring engine: the activation eats the creature. The construction dates it to an allied-versus-enemy-color era, blue to cast and red to set off, a creature whose two halves deliberately span that fault line. Whirlpool Warrior is the grindier cousin of that design philosophy's flashier hybrids: not a bomb, but a card-quality knob and a combo enabler wearing a 2/2 Merfolk as a delivery system, where the body matters far less than the two ways it churns through your library.