Amoeboid Changeling + Scuttling Sliver + The Eternity Elevator + Trazyn the Infinite

UB identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Amoeboid Changeling by tapping it, causing Trazyn to become a Sliver until end of turn.
  2. Activate Trazyn using The Eternity Elevator'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