PuPu UFO

A 0/4 flier for two mana that climbs over the ground while threatening nothing on it, and the tap ability is where the double duty starts: it drops a land from hand onto the battlefield as a repeatable engine, so the same body that stonewalls early attackers also accelerates your mana every turn you leave it back. The three-mana ability is the odd part. It resets base power to the number of Towns you control, converting a durable blocker into a scaling air threat, but only if you have assembled that land subtype in numbers. Towns are a narrow slice of the land pool, so the payoff is deliberately conditional: the card wants a build that counts a subtype most decks never track, and gives back nothing if you have not stacked them. The flying is what ties the modes together, because whatever power you manufacture off your Towns arrives evasive, clearing ground defenses even though fliers and reach can still contest it. Fixer, accelerant, and finisher folded into one shell, each mode gated behind its own setup: the body defends while you build, the tap ability builds while you defend, and the power swap only cashes out once the Towns are on the board. Its tap engine waits on summoning sickness, which is the whole shape of the design.