Kiki-Jiki, Mirror Breaker, Thornbite Staff, and Aether Flash

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Thornbite Staff on the battlefield
• Aether Flash on the battlefield
• Thornbite Staff attached to Kiki-Jiki
• You control a nonlegendary creature whose base toughness is 2 or less

Steps

1. Activate Kiki-Jiki by tapping it, creating a token copy of a nonlegendary creature whose base toughness is 2 or less
2. When the creature token enters the battlefield, Aether Flash triggers, dealing 2 damage to the creature token
3. The creature token dies as a state-based action due to having 0 or less toughness, triggering Kiki-Jiki, untapping Kiki-Jiki
4. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB