Sumala Sentry

A disguise payoff that doubles back on itself. The trigger keys off the flip event rather than any creature type or color, so it treats every face-down permanent you control as a delayed growth spell: unmask something and two counters land, one on the newly-revealed permanent and one here. The design rewards a board built around cloak and disguise, because each reveal grows the shell that generated it while the Sentry compounds alongside. Left alone, the 1/3 with reach is a defensive wall, a body that trades up in the air and holds ground on the floor; the counters are what turn it from a speed bump into a clock. What keeps the payoff honest is that it needs a critical mass of face-down permanents to matter, and every flip is a one-time event: no face-down cards means the ability is dead text, so the card demands commitment to the subtheme rather than a light splash. The reach is not incidental either, since a growing body with reach becomes a genuine air blocker as the counters accumulate, letting a cheap deployment scale into a defensive anchor that also threatens damage. The point of the design is to hand a face-down archetype an aggressive engine rather than a purely evasive one: a wall that gets taller every time you pull off a mask.