Basalt Monolith + Scuttling Sliver + Trazyn the Infinite + Unnatural Selection

Mana needed: {1}

UB identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Unnatural Selection by paying {1}, causing Trazyn to become a Sliver until end of turn.
  2. Activate Trazyn using Basalt Monolith's ability by tapping it, adding {C}{C}{C}.
  3. Activate Trazyn by paying {2}, untapping it.
  4. Repeat from step 2.

What the combo produces