River Kelpie, Vizier of Remedies, and Carrion Feeder

Prerequisites

• River Kelpie on the battlefield
• Vizier of Remedies on the battlefield
• Carrion Feeder on the battlefield

Steps

1. Activate Carrion Feeder by sacrificing River Kelpie
2. River Kelpie's persist triggers, returning it from your graveyard to the battlefield
3. River Kelpie enters the battlefield, causing you to draw
4. Resolve the Carrion Feeder trigger, putting a +1/+1 counter on it
5. Repeat

Results

• Infinite card draw
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinitely large Carrion Feeder
• Near-infinite sacrifice triggers