Shrewd Hatchling

Most creatures cost mana and arrive at full size. This one inverts the deal: the printed body is large, but four -1/-1 counters dock it down to a 2/2 on arrival, and you pay off the difference in spells you were already going to cast. Every blue spell removes a counter, every red spell removes a counter, so a deck that splits its lands between both colors and keeps the spells flowing turns its own gameplan into the repayment schedule. The phrasing matters: counter removal is a triggered ability, not a cost you activate. The only thing you spend mana on is the evasion, and the hybrid cost in its mana cost is the tell, this wants to live where one set of lands makes either color. What carries the danger is the kind of counter. These are stat-reducing, not charge counters, so they cannot rebound or expire; once they are stripped the creature simply holds its full size with nothing able to push it back down. There is no math trick here, only a tempo trade. You commit a fragile body up front and ask the spells to come to finish paying for it, which means the card folds to anyone who can kill a 2/2 before your spell count restores it. It belongs to a school of design that liked to bury a big creature under penalties and then hand the player's own deck the tools to dig it out.