Alert Heedbonder

Vigilance is usually treated as a rider, a keyword you accept for free on a creature that was going to swing and hold the ground anyway. This design does something rarer: it makes vigilance the thing you count, folding a defensive keyword into a payoff. Every creature that can attack and block at once ticks up your end-step lifegain, so the same board that keeps you safe on the crackback also buys back the life an aggressive tempo trade cost you. The body sells the intent. A 2/4 is the archetypal blocker that never wanted to stay home, and giving it vigilance lets it press into a stalled board while still counting itself for the trigger. The tension the card resolves is the one that has always dogged go-wide vigilance decks: those boards defend beautifully and win slowly, if at all. Bolting a per-creature lifegain engine onto the keyword turns that patience into a resource, padding the life total a grindy board wants without asking you to change how you play the ground. It is a payoff built for a very specific texture of green-white board: not tokens broadly, but the subset of creatures that can hold both jobs at once. Narrow enough that it wants a deck constructed around the keyword rather than one that merely tolerates it, which is exactly the sort of build-around a supporting-color pair like this rewards.