Toph, the First Metalbender, Haru, Hidden Talent, Umbral Collar Zealot, and Bloodline Pretender

Prerequisites

• Toph, the First Metalbender on the battlefield
• Haru, Hidden Talent on the battlefield
• Umbral Collar Zealot on the battlefield
• Bloodline Pretender in hand
• available

Steps

1. Cast Bloodline Pretender by paying
2. When Bloodline Pretender enters, Haru triggers, targeting Bloodline Pretender as it is a land due to Toph
3. Activate Umbral Collar Zealot by sacrificing Bloodline Pretender
4. When Bloodline Pretender dies, Haru triggers, returning Bloodline Pretender from your graveyard to the battlefield tapped
5. When Bloodline Pretender enters, Haru triggers, targeting Bloodline Pretender as it is a land due to Toph
6. Resolve the Umbral Collar Zealot ability
7. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers
• Infinite surveil 1