Circle of Dreams Druid does not have summoning sickness.
You control at least two other creatures.
An opponent cannot block and kill
Lightning Runner.
Steps
Declare
Lightning Runner as an attacker, triggering its ability.
Holding priority, activate
Circle of Dreams Druid by tapping it, adding at least six ({G} magic symbol) .
Activate
Emiel by paying ({3} magic symbol) , blinking
Aethertorch Renegade.
Aethertorch Renegade enters the battlefield, causing you to get ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) .
Repeat from step 3 one additional time.
Resolve the
Lightning Runner ability from step 1, causing you to get ({E} magic symbol) ({E} magic symbol) , then pay eight ({E} magic symbol) to untap all creatures you control, and to get an additional combat phase after this one.