Hero of Bretagard
Exile is usually a color-pie afterthought in white: a keyword attached to removal, a rider on cards that already do something. Here the exile is the growth engine itself. Every card that leaves your hand for exile and every permanent your effects banish from the battlefield feeds counters onto a body that starts as a fragile 1/1 and escalates through two thresholds: flying and Angelhood at five, indestructibility and Godhood at ten. The design reads exile as a resource rather than a cost, which flips the usual math on effects like foretell or blink packages that would otherwise treat exile as neutral bookkeeping. The two type-line rewrites are the clever part; they turn a counter total into tribal payoffs, so a deck already built around Angels or Gods gets a second engine attached to something it was doing anyway. What holds the whole thing honest is the front end: at three mana with a 1/1 body and no evasion until the fifth counter, it demands you actually assemble the exile density before it becomes a threat, and a removal spell answers it cleanly at any point before indestructibility lands. It is a build-around whose payoff is legible from the moment you read the thresholds, and whose ceiling is a flying, indestructible God assembled entirely out of the exile your other cards were generating for free.
