Chatterfang, Squirrel General + Fain, the Broker + Grumgully, the Generous + Intruder Alarm

UBRG identity

Commander legal

The 4 combo pieces

• Chatterfang, Squirrel General
• Fain, the Broker
• Grumgully, the Generous
• Intruder Alarm

What must be in place

Fain does not have summoning sickness.

How to execute it

1. Activate Fain's second ability by tapping it and removing a counter from a creature you control, creating a Treasure artifact token and a 1/1 Squirrel creature token that enters the battlefield with a +1/+1 counter on it due to Grumgully.
2. When the Squirrel enters the battlefield, Intruder Alarm triggers, untapping all creatures.
3. Repeat.
4. Once you have infinite Treasure and Squirrel tokens, you may activate Fain's other abilities.

What the combo produces

• Infinite +1/+1 counters on creatures you control
• Infinite colored mana
• Infinite creature LTB
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite Treasure tokens
• Infinite untap of creatures
• Reduce the toughness of creatures opponents control to 0