Melira, Sylvok Outcast, Umbral Collar Zealot, and River Kelpie

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Umbral Collar Zealot on the battlefield
• River Kelpie on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing River Kelpie
2. When River Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira
3. When River Kelpie enters, it triggers, causing you to draw a card Resolve the Umbral Collar Zealot ability
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Near-infinite surveil