Jaheira, Friend of the Forest, Spawnsire of Ulamog, and Tyvar, Jubilant Brawler

Prerequisites

• Jaheira, Friend of the Forest on the battlefield
• Spawnsire of Ulamog on the battlefield
• Tyvar, Jubilant Brawler on the battlefield
• available

Steps

1. Activate Spawnsire of Ulamog's first ability by paying , creating two 0/1 Eldrazi Spawn creature tokens
2. Activate the Eldrazi Spawns by tapping them, adding
3. Activate the Eldrazi Spawns by sacrificing them, adding
4. Repeat

Results

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