Kykar, Wind's Fury, Trusty Boomerang, Mana Echoes, and Anger

Prerequisites

• Kykar, Wind's Fury on the battlefield
• Trusty Boomerang in hand
• Mana Echoes on the battlefield
• Anger in the graveyard
• at most available

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite storm count
• Infinite red mana
• Infinite tapped creature tokens