Reveillark, Karmic Guide, and Mirror Entity

Prerequisites

• Reveillark on the battlefield
• Karmic Guide on the battlefield
• Mirror Entity on the battlefield
• undefined

Steps

1. Activate Mirror Entity by paying , causing each creature you control to have base power and toughness 0
2. Mirror Entity, Reveillark and Karmic Guide all die as a state-based action due to having 0 toughness
3. When Reveillark dies, it triggers, returning Mirror Entity and Karmic Guide from your graveyard to the battlefield
4. When Karmic Guide enters the battlefield, it triggers, returning Reveillark from your graveyard to the battlefield
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers