Nyx Lotus + Retrofitter Foundry + Trazyn the Infinite

B identity

Commander legal

The 3 combo pieces

What must be in place

Your devotion to any color is at least four.

How to execute it

  1. Activate Trazyn using Nyx Lotus's ability by tapping it, adding at least four mana of any color.
  2. Activate Trazyn using Retrofitter Foundry's ability by paying {3}, untapping it.
  3. Repeat.

What the combo produces