Carrion Feeder, Myrkul, Lord of Bones, Riftsweeper, and Verdant Succession

Prerequisites

• Carrion Feeder on the battlefield
• Myrkul, Lord of Bones on the battlefield
• Riftsweeper on the battlefield
• Verdant Succession on the battlefield

Steps

1. Activate Carrion Feeder by sacrificing Riftsweeper
2. Riftsweeper dies, triggering Verdant Succession and Myrkul
3. Resolve the Myrkul trigger, causing you to exile Riftsweeper and create a token copy of Riftsweeper that is an enchantment and loses all other card types
4. The Riftsweeper token enters the battlefield, shuffling the nontoken Riftsweeper into your library from exile
5. Resolve the Verdant Succession trigger from step 2, searching your library for Riftsweeper and putting it onto the battlefield
6. Riftsweeper enters the battlefield, shuffling any exiled card into its owner's library
7. Resolve the Carrion Feeder ability from step 1, putting a +1/+1 counter on it
8. Repeat

Results

• Infinite +1/+1 counters on Carrion Feeder
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers