Emiel the Blessed + Lightning Runner + Aethertorch Renegade + Circle of Dreams Druid

Emiel the Blessed

Lightning Runner

Aethertorch Renegade

Circle of Dreams Druid

How it works

1. Declare Lightning Runner as an attacker, triggering its ability.
2. Holding priority, activate Circle of Dreams Druid by tapping it, adding at least six .
3. Activate Emiel by paying 3, blinking Aethertorch Renegade.
4. Aethertorch Renegade enters the battlefield, causing you to get EEEE.
5. Repeat from step 3 one additional time.
6. Resolve the Lightning Runner ability from step 1, causing you to get EE, then pay eight E to untap all creatures you control, and to get an additional combat phase after this one.
7. Repeat each combat phase.