Marrow-Gnawer, and Thornbite Staff

Prerequisites

• Marrow-Gnawer on the battlefield
• Thornbite Staff on the battlefield
• Thornbite Staff attached to Marrow-Gnawer
• Marrow-Gnawer does not have summoning sickness
• You control at least two additional Rats

Steps

1. Tap Marrow-Gnawer, sacrifice another rat, to create 2 1/1 Rat tokens
2. Thornbite Staff triggers, untapping Marrow-Gnawer
3. Repeat

Results

• Infinite creature tokens
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers