Kiki-Jiki, Mirror Breaker, Return the Favor, and Dualcaster Mage

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Return the Favor in hand
• Dualcaster Mage in hand
• You control at least one nonlegendary creature
• available

Steps

1. Activate Kiki-Jiki by tapping it, targeting any nonlegendary creature you control
2. Holding priority, cast Return the Favor by paying , choosing its first mode, targeting Kiki-Jiki's ability
3. Holding priority, cast Dualcaster Mage by paying
4. When Dualcaster Mage enters the battlefield, it triggers, copying Return the Favor, targeting Kiki-Jiki's ability
5. Resolve the copy of Return the Favor, copying Kiki-Jiki's ability, targeting Dualcaster Mage
6. Resolve the copy of Kiki-Jiki's ability, creating a token copy of Dualcaster Mage with haste
7. Repeat from step 4

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens with haste
• Infinite magecraft triggers