Waves of Aggression + Savage Ventmaw + Sword of Light and Shadow + Dryad Arbor
Waves of Aggression
Savage Ventmaw
Sword of Light and Shadow
Dryad Arbor
Infinite combat damageInfinite combat phasesInfinite green manaInfinite lifegainInfinite lifegain triggersInfinite magecraft triggersInfinite red manaInfinite self-discard triggersInfinite storm count
How it works
Declare Savage Ventmaw as an attacker.
Savage Ventmaw triggers, adding that you don't lose as steps and phases end.
Deal combat damage to an opponent with Savage Ventmaw.
Sword of Light and Shadow triggers, causing you to gain three life and return Dryad Arbor from your graveyard to your hand if it's in your graveyard.
Move to your postcombat main phase.
Cast Waves of Aggression from your graveyard for its retrace cost by paying 3 and discarding Dryad Arbor, untapping all creatures that attacked this turn and causing you to get an additional combat and main phase after this one.