When General Tazri enters, you may search your library for an Ally creature card, reveal it, put it into your hand, then shuffle.
: Ally creatures you control get +X/+X until end of turn, where X is the number of colors among those creatures.
Lead a tribal Allies army that snowballs through enter-the-battlefield triggers, then close games with Tazri's five-color anthem pump. You tutor a key Ally on cast, flood the board with rally synergies, and either go wide or assemble a five-color combo. The deck plays as either a creature-based midrange aggro deck or, more powerfully, a WUBRG combo shell that uses Tazri to find a single combo piece.
Free Ally tutor on every cast makes the deck consistent and combo-capable
Five colors means access to the best removal, ramp, and tutors in the format
Rally triggers (Allies entering) generate huge incremental value and board states
Anthem ability provides reach to close out go-wide boards
Board wipes are devastating to a creature-centric Ally strategy
Five-color manabase is expensive and prone to color-screw without fixing
Anthem ability costs all five colors and is mana-intensive to fire repeatedly
Many Ally payoffs are individually weak and rely on critical mass
Legendary Creature — Human Ally
