Agrus Kos, Eternal Soldier + Soulbright Flamekin + Deflecting Swat + Felidar Guardian + Mnemonic Wall

Agrus Kos, Eternal Soldier

Soulbright Flamekin

Deflecting Swat

Felidar Guardian

Mnemonic Wall

How it works

1. Activate Soulbright Flamekin by paying 2, targeting Agrus Kos.
2. Agrus Kos triggers, causing you to pay 1R/W to copy Soulbright Flamekin's ability targeting each other creature you control.
3. Resolve all Soulbright Flamekin triggers, giving the targeted creatures trample until end of turn and adding eight .
4. Cast Felidar Guardian by paying 3.
5. When Felidar Guardian enters the battlefield, it triggers, targeting Agrus Kos.
6. Agrus Kos triggers, causing you to pay 1R/W to copy Felidar Guardian's trigger, targeting each other creature you control except Felidar Guardian.
7. Resolve the copies of Felidar Guardian's trigger targeting Soulbright Flamekin and Mnemonic Wall, blinking Soulbright Flamekin and Mnemonic Wall.
8. When Mnemonic Wall enters the battlefield, it triggers, returning Deflecting Swat from your graveyard to your hand.
9. Holding priority, activate Soulbright Flamekin by paying 2, targeting Agrus Kos.
10. Agrus Kos triggers, causing you to pay 1R/W to copy Soulbright Flamekin's ability targeting each other creature you control.
11. Resolve all Soulbright Flamekin triggers, giving the targeted creatures trample until end of turn and adding eight .
12. Cast Deflecting Swat by paying 0, changing any of the remaining Felidar Guardian triggers not targeting Agrus Kos to target Agrus Kos instead.
13. Repeat from step 6.