Aetherwind Basker does not have summoning sickness.
Steps
Declare
Lightning Runner and
Aetherwind Basker as attackers, triggering their abilities.
Resolve the
Aetherwind Basker trigger, causing you to get at least six .
Resolve the
Lightning Runner trigger, causing you to get , and then pay eight 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 .
Results
Infinite combat phases.
Infinite energy counters.
Infinite mana creatures you control can produce.
Infinite untap of creatures you control.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
1
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3
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5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.