Argothian Elder + Pili-Pala + Rex, Cyber-Hound

GWU identity

Commander legal

The 3 combo pieces

What must be in place

You control at least two mana-producing lands.
Rex does not have summoning sickness.
Argothian Elder and Pili-Pala exiled with a brain counter on them.

How to execute it

  1. Activate Rex using Argothian Elder's ability by tapping it, untapping two lands.
  2. Activate two lands by tapping them, adding at least {2}.
  3. Activate Rex using Pili-Pala's ability by paying {2} and untapping it, adding one mana of any color.
  4. Repeat.

What the combo produces