Mirror Sheen + Turnabout
Mana needed: {3}{U}{U}{U/R}{U/R}, {3}{U/R}{U/R} of which are from the same type among lands
UR identity
Commander legal
The 2 combo pieces
How to execute it
- Cast Turnabout targeting yourself naming untap lands, hold priority.
- Activate Mirror Sheen to copy Turnabout.
- Let the copy resolve, choosing to untap.
- Repeat.
What the combo produces
- Infinite colored mana
- Infinite colorless mana