Towering-Wave Mystic

Mill has usually lived on its own axis: a mana-hungry engine that grinds a library while the caster does nothing to advance the board. This welds the clock to combat instead. Every point of damage the Merfolk deals converts into cards off a target library, so the mill scales with everything a creature deck already wants to do: pump spells, evasion, extra combat steps. Crucially, the trigger keys on any damage dealt, not just damage that connects with a player. Throw it into a blocker and you still mill for its power; a chump block stops the beatdown but not the effect, because the defending player never gets to redirect where those cards come off (the Mystic's controller picks the target). That decouples the mill from evasion: a 2/1 that trades in the exchange has still turned two damage into two cards, and a buffed body plowing through blockers takes a bigger bite either way. Because the ability targets any player, it also opens a self-mill line for graveyard decks that would rather stock their own yard on the attack than tap out for a dedicated enabler. The mill never exceeds the damage the body puts out, so the fragile frame keeps the effect from running away on its own. The lesson is that mill need not be a durdle strategy off to the side; here it rides the attack step, paid for entirely by damage the creature was dealing anyway.