Pride of the Clouds
The body grows with the skies it shares. It counts every other flier on the battlefield, including your opponents', and folds the whole air war into its own stat line: a 1/1 that swells into a real threat the moment the skies fill up, no matter who filled them. That self-scaling inverts the usual flying-tribal payoff. Most cards of that stripe pump the team and want bodies on your side; this one buffs only itself and treats an enemy flock as fuel with no preference for who owns the wings. Forecast rescues it from being a dead card in hand: reveal it during your upkeep and you manufacture the very Bird tokens that grow it, one per turn, never exposing the creature to a sweeper. That separation is the clever part. The engine half lives safely in hand while the payoff half waits for a board worth landing into. Forecast was a brief experiment in slow, telegraphed value you could leak out turn by turn, and few cards squared the mechanic so neatly with their own win condition, since the tokens it makes are exactly the creatures it counts. Cast it into a sky already thick with wings and it arrives enormous; cast it into an empty board and you have a fragile 1/1 better left in hand, drip-feeding birds until the math finally favors the play.

