Kiki-Jiki, Mirror Breaker, Thornbite Staff, and Spike Feeder

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Thornbite Staff on the battlefield
• Spike Feeder on the battlefield
• Thornbite Staff attached to Kiki-Jiki

Steps

1. Activate Kiki-Jiki by tapping it, creating a token copy of Spike Feeder with haste, that enters the battlefield with two +1/+1 counters
2. Activate Spike Feeder's second ability twice by removing both +1/+1 counters from it
3. Spike Feeder dies as a state-based action due to having zero toughness
4. Kiki-Jiki triggers, untapping itself
5. Resolve the Spike Feeder abilities, causing you to gain four life
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite sacrifice triggers