Arcane Adaptation + Cryptolith Rite + Judge of Currents + Lurking Roper

GWU identity

Commander legal

The 4 combo pieces

What must be in place

Lurking Roper does not have summoning sickness.
"Merfolk" chosen with Arcane Adaptation.

How to execute it

  1. Activate Lurking Roper by tapping it, adding one mana of any color.
  2. Judge of Currents triggers, causing you to gain 1 life.
  3. Lurking Roper triggers, untapping itself.
  4. Repeat.

What the combo produces