Trusty Boomerang, Mana Echoes, Anger, and Sokka and Suki

Prerequisites

• Trusty Boomerang in hand
• Mana Echoes on the battlefield
• Anger in the graveyard
• Sokka and Suki on the battlefield
• available

Steps

1. Cast Trusty Boomerang by paying
2. When Trusty Boomerang enters, Sokka and Suki's second ability triggers, creating a 1/1 Ally creature token
3. When the Ally enters, Sokka's first ability and Mana Echoes trigger
4. Resolve the Mana Echoes trigger, adding for each Ally you control
5. Resolve the Sokka trigger, attaching Trusty Boomerang to the Ally token
6. Activate the Ally by paying and tapping it, tapping a creature and returning Trusty Boomerang from the battlefield to your hand
7. Repeat

Results

• Infinite ETB
• Infinite colorless mana
• Infinite storm count
• Infinite tapped creature tokens