Greymond, Avacyn's Stalwart
A Human tribal lord built to slot into a battalion of anthems that already existed, and the design solves the specificity problem those decks kept running into: which keyword do the tokens actually want? Rather than fix that at printing time, this hands the choice to the caster, granting two of first strike, vigilance, and lifelink to the Humans you control as it enters. Pick vigilance and lifelink for a grinding attrition plan, first strike and lifelink to punch through a race, first strike and vigilance to hold a defensive line while still swinging. The 3/4 body is stat-line insurance: it survives the small sweepers that trade with X/2 boards. The +2/+2 kicks on at four or more Humans, so the payoff is front-loaded onto a critical mass a dedicated tribal build hits early, turning a wide but underwhelming board into a lethal one in a single toughness bump. It is a lord that also reconfigures how the team fights, and the modal keyword choice is the interesting part: most tribal anthems pick their bonus for you, while this one adapts to the game state in front of it, which makes the same card read as an aggressive closer, a defensive wall, or a lifegain engine depending on the two words you name when it enters.

