Reveillark + Karmic Guide + Mirror Entity

Prerequisites

• None of the creatures have an effect that is boosting their toughness, such as Auras or counters.

Steps

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

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB