You have at least ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) .
Notable Prerequisites
An opponent cannot block and kill
Lightning Runner.
You control at least six creatures.
An opponent cannot block and kill
Lightning Runner or
Aetherwind Basker.
Aetherwind Basker does not have summoning sickness.
Steps
At the beginning of your combat phase,
Saheeli triggers, causing you to pay ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) to create a token copy of
Aetherwind Basker with haste.
When the
Aetherwind Basker token enters the battlefield, it triggers, causing you to get at least seven ({E} magic symbol) .
Declare
Lightning Runner and the
Aetherwind Basker tokens as attackers.
Resolve the
Aetherwind Basker trigger, causing you to get at least seven ({E} magic symbol) .
Resolve the
Lightning Runner trigger, triggering its ability, causing you to get ({E} magic symbol) ({E} magic symbol) and then pay eight ({E} magic symbol) to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.
Declare
Lightning Runner and
Aetherwind Basker as attackers, triggering their abilities.
Resolve the
Aetherwind Basker trigger, causing you to get at least six ({E} magic symbol) .
Resolve the
Lightning Runner trigger, causing you to get ({E} magic symbol) ({E} magic symbol) , and then pay eight ({E} magic symbol) to untap all creatures you control and to get an additional combat phase after this one.
Repeat.
If you control more than six creatures, this combo will net infinite ({E} magic symbol) .