
If a triggered ability of an Ally you control triggers, that ability triggers an additional time.
Build a wide Ally tribal board and abuse enter-the-battlefield and combat triggers, with Katara doubling every Ally's triggered ability for explosive value. You ramp into your team, snowball with each new Ally pumping, drawing, or making tokens twice, and overwhelm the table once the engine is online.
Add more Allies with high-impact triggered abilities and cheap blink/flicker effects (Restoration Angel, Conjurer's Closet) to re-trigger doubled ETBs. Bolster protection with Heroic Intervention and Teferi's Protection against wraths, and lean on Bant staples like Smothering Tithe, Esper Sentinel, and fast mana to deploy Katara and rebuild quickly. Tighten the curve and trim weak vanilla Allies for tutors (Chord of Calling, Eladamri's Call) that find your best trigger pieces.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
No combos found for this commander on Commander Spellbook.
Same color identity (GUW), by popularity.