Chakram Retriever + Clockspinning + Nardole, Resourceful Cyborg

U identity

Commander legal

The 3 combo pieces

What must be in place

Nardole has at least four counters on it.
Nardole does not have summoning sickness.

How to execute it

  1. Activate Nardole by tapping it, adding at least {U}{U}{U}{U} that can only be spent to cast noncreature spells.
  2. Cast Clockspinning with buyback by paying {3}{U}.
  3. Chakram Retriever triggers, untapping Nardole.
  4. Resolve Clockspinning, putting a counter on Nardole, or putting/removing a counter from any other permanent you control, and then returning Clockspinning to your hand.
  5. Repeat.
  6. Once you have infinite {U} that can only be spent to cast noncreature spells, you may target any other creature using Chakram Retriever's trigger.

What the combo produces