Serra's Guardian

The vigilance-anthem is a quieter design than the keyword anthems that came before it: instead of pushing combat math, it changes the shape of your defenses without asking you to choose between offense and defense. Granting vigilance to the whole board means an attacking army that never drops its guard, which matters most in a deck that wants to swing wide and still survive the crackback. The body carries the standard premium-Angel package, a 5/5 evasive threat that closes games on its own, but the anthem is what gives the card a reason to be more than a vanilla finisher. The catch is the cost: at six mana for a board-wide static effect, the payoff arrives late and only justifies itself if you already have a battlefield wide enough to vigilance-up. Played into an empty board it grants vigilance to nobody, since its own vigilance comes from the printed keyword. That tension (a team-wide buff that needs a team to buff) is the line between a finisher that happens to read well and a build-around: the more creatures you have when it lands, the more it earns its place, and the fewer you have, the more it is just another big flier.