Infinite creature LTBInfinite creature ETBInfinite storm countInfinite red manaInfinite magecraft triggersInfinite blinkingTarget opponent returns all cards in their graveyard to their hand
How it works
Activate Soulbright Flamekin by paying 2, targeting Agrus Kos.
Agrus Kos triggers, causing you to pay 1R/W to copy Soulbright Flamekin's ability targeting each other creature you control.
Resolve all Soulbright Flamekin triggers, giving the targeted creatures trample until end of turn and adding eight .
Cast Felidar Guardian by paying 3.
When Felidar Guardian enters the battlefield, it triggers, targeting Agrus Kos.
Agrus Kos triggers, causing you to pay 1R/W to copy Felidar Guardian's trigger, targeting each other creature you control except Felidar Guardian.
Resolve the copies of Felidar Guardian's trigger targeting Soulbright Flamekin and Skullwinder, blinking Soulbright Flamekin and Skullwinder.
When Skullwinder enters the battlefield, it triggers, returning Deflecting Swat from your graveyard to your hand and causing an opponent to return a card to their hand from their graveyard.