Haakon, Stromgald Scourge + Morophon, the Boundless + Nameless Inversion + Rowan, Scion of War

WUBRG identity

Commander legal

The 4 combo pieces

• Haakon, Stromgald Scourge
• Morophon, the Boundless
• Nameless Inversion
• Rowan, Scion of War

What must be in place

You've lost life this turn.

How to execute it

1. Activate Rowan by tapping it, causing black and red spells you cast to cost {1} less for each life you've lost this turn.
2. Cast Nameless Inversion from your graveyard, as it is a Knight card, by paying {0} due to Rowan and Morophon, giving a creature +3/-3 until end of turn.
3. If the creature has toughness 0 or less, the creature dies as a state-based action.
4. Repeat from step 2 as desired.

What the combo produces

• Reduce the toughness of creatures opponents control to 0
• Reduce the toughness of each creature opponents control to 0 upon entering