Fain, the Broker, Chatterfang, Squirrel General, Intruder Alarm, and Combine Guildmage

Prerequisites

• Fain, the Broker on the battlefield
• Chatterfang, Squirrel General on the battlefield
• Intruder Alarm on the battlefield
• Combine Guildmage on the battlefield
• Fain does not have summoning sickness
• A creature you control has a counter on it
• available

Steps

1. Activate Combine Guildmage's first ability by paying , causing each creature you control to enter the battlefield with a +1/+1 counter on it this turn
2. 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 with a +1/+1 counter on it due to Combine Guildmage
3. The Squirrel enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Repeat from step 2
5. Once you have infinite Treasure and Squirrel tokens, you may activate Fain's other abilities

Results

• Infinite +1/+1 counters
• Infinite colored mana
• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite Treasure tokens
• Infinite untap of all creatures
• Infinite LTB
• Infinite sacrifice triggers
• Infinite death triggers