Irma, Part-Time Mutant, and Akki Battle Squad

Prerequisites

• Irma, Part-Time Mutant on the battlefield
• Akki Battle Squad on the battlefield

Steps

1. At the beginning of your combat phase, Irma triggers, causing it to become a copy of Akki Battle Squad and putting a +1/+1 counter on it
2. Declare Irma as an attacker
3. Irma triggers, untapping all modified creatures you control and causing you to get an additional combat phase after this one
4. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite combat phases
• Infinite untap of modified creatures you control