Artificer Class + Tamiyo's Compleation + Ugin's Nexus

U identity

Commander legal

The 3 combo pieces

What must be in place

Tamiyo's Compleation attached to Ugin's Nexus.
Artificer Class is level three.

How to execute it

  1. At the beginning of your end step, Artificer Class triggers, creating a token copy of Ugin's Nexus.
  2. Put the token Ugin's Nexus into exile due to the legend rule, causing you to take an extra turn after this one.
  3. Repeat each turn.

What the combo produces