Earthcraft + Mana Reflection + Pheres-Band Tromper + Sinking Feeling

GU identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Earthcraft by tapping Pheres-Band Tromper, untapping a basic land.
  2. Activate the land by tapping it, adding {2}.
  3. Activate Pheres-Band Tromper by paying {1} and putting a -1/-1 counter on it, untapping it.
  4. Pheres-Band Tromper triggers, putting a +1/+1 counter on it.
  5. Repeat.

What the combo produces