Sokka, Tenacious Tactician + Trusty Boomerang + Mana Echoes + Maelstrom Wanderer

Sokka, Tenacious Tactician

Trusty Boomerang

Mana Echoes

Maelstrom Wanderer

How it works

1. Cast Trusty Boomerang by paying 1.
2. Sokka's second ability and each Ally you control's prowess ability trigger.
3. Resolve all prowess triggers, giving each Ally you control +1/+1 until end of turn.
4. Resolve the Sokka trigger, creating a 1/1 Ally creature token.
5. When the Ally enters, Mana Echoes triggers, adding C for each Ally you control.
6. Activate Trusty Boomerang's equip ability by paying 1, attaching it to the Ally token.
7. Activate the Ally token by paying 1 and tapping it, tapping a creature a returning Trusty Boomerang from the battlefield to your hand.
8. Repeat.

This loop transforms a humble piece of equipment into a relentless engine of creation and combat growth. By repeatedly casting Trusty Boomerang, you feed Sokka, Tenacious Tactician's ability to flood the board with Ally tokens while continuously pumping every creature's prowess. Mana Echoes harnesses this rapidly expanding army to generate a surplus of colorless mana with each new token that enters. Finally, Maelstrom Wanderer grants your entire squad haste, ensuring that your infinitely large, infinitely numerous token forces can immediately sweep the board.