Avalanche! — Whenever an Equipment you control enters, create a 2/2 red Rebel creature token.
At the beginning of combat on your turn, attach up to one target Equipment you control to target Rebel you control.
Barret floods the board with 2/2 Rebel tokens every time an Equipment enters, then auto-equips your gear at the start of combat to turn a wide board into a lethal one. You ramp into cheap Equipment and token producers early, snowball bodies in the midgame, and close by attacking with a swarm of armed Rebels.
Free token generation off every Equipment trigger builds a board fast
Combat-step auto-attach saves mana and reshuffles gear onto fresh attackers each turn
Reach gives natural defense against fliers while you assemble the swarm
Gruul ramp lets you chain multiple Equipment and overrun quickly
Board wipes are devastating since the strategy is heavily creature-based
Relies on Equipment entering to make tokens, so disruption or slow draws stall you
No built-in card advantage or recursion in the color identity
Token swarm folds to fogs, ground-stalling blockers, and cheap removal on Barret