Kiki-Jiki, Mirror Breaker, Umbral Collar Zealot, and Changeling Titan

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Umbral Collar Zealot on the battlefield
• Changeling Titan on the battlefield
• available

Steps

1. Activate Kiki-Jiki by tapping it, creating a token copy of Changeling Titan
2. When the Changeling Titan token enters the battlefield, it triggers, exiling Kiki-Jiki until Changeling Titan leaves the battlefield
3. Activate Umbral Collar Zealot by sacrificing the Changeling Titan token
4. When the Changeling Titan token dies, Kiki-Jiki is returned from exile to the battlefield
5. Resolve the Umbral Collar Zealot ability
6. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite surveil