Basilica Screecher

Extort works best when it disappears into the cost of doing nothing special, and this is the cleanest expression of that: a two-mana evasive body whose only job is to sit on the battlefield and tax every spell you were already going to cast. The flier matters less for the single point it puts in the air than for the fact that it survives, holding the extort trigger online turn after turn while you drain a life or two off each cantrip, removal spell, or threat you deploy. The hybrid in the cost is the quiet part of the design: the keyword reads as a white-black guild mechanic, but a single Bat in a mono-black shell can fuel it entirely with black mana, which is how a card built for a two-color identity ends up doing its steadiest work outside it. Each trigger drains just one life, and paying is explicitly optional, so the card never punishes you for casting cheaply; it just asks whether you have a spare mana lying around, and across a long game the answer is usually yes. That slow accumulation, each opponent shedding a point while you gain it, attached to a creature too cheap to bother removing, is the whole pitch. It is attrition disguised as a sideline.