Derevi, Empyrial Tactician, Emiel the Blessed, and Grim Monolith

Prerequisites

• Derevi, Empyrial Tactician on the battlefield
• Emiel the Blessed on the battlefield
• Grim Monolith on the battlefield

Steps

1. Activate Grim Monolith by tapping it, adding
2. Activate Emiel by paying , blinking Derevi
3. When Derevi enters the battlefield, it triggers, untapping Grim Monolith
4. Repeat

Results

• Infinite LTB
• Infinite ETB