Kiki-Jiki, Mirror Breaker, Umbral Mantle, and Famished Foragers

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Umbral Mantle on the battlefield
• Famished Foragers on the battlefield

Steps

1. Activate Kiki-Jiki by tapping it, creating a token copy of Famished Foragers with haste
2. When the token Famished Foragers enters the battlefield, it triggers, adding
3. Activate Kiki-Jiki by paying and untapping it, giving it +2/+2 until end of turn
4. Repeat

Results

• Infinite creature tokens with haste
• Infinite ETB
• Infinitely large Kiki-Jiki until end of turn