Billowing Shriekmass

A self-fueling threshold enabler that pays for part of its own payoff. The mill three on entry is not incidental card advantage or a graveyard-hate liability; it is the down payment on the +2/+1, covering nearly half the seven-card threshold count the moment the Spirit lands. That closes the usual gap in threshold designs, where the payoff sits inert until some other engine fills the yard. Here the body arrives already three cards closer to its own condition, so a follow-up mill or a few more cards in the yard flips it into a 4/4 flier: a real clock in the air rather than a defensive speed bump. The tension the design resolves is that self-mill has always been a two-sided cost, threatening to deck you or feed an opponent's recursion, but on an aggressive evasive threat that scaling is entirely upside. It wants to be one part of a graveyard-matters shell, where the milled cards are fuel for delve, flashback, or reanimation rather than losses. Uncoupled from that support it is a serviceable 2/3 flier that eventually grows; alongside cheap mill or fetch effects it is a threat that starts ahead of the curve and stays there.