Mirror Box + Orvar, the All-Form + Throne of Eldraine + Whim of Volrath

Mana needed: {2}{U} if Throne of Eldraine's chosen color is not "Blue"

U identity

Commander legal

The 4 combo pieces

How to execute it

  1. If able, activate Throne of Eldraine's first ability by tapping it, adding {U}{U}{U}{U} that can only be spent to cast blue monocolored spells.
  2. Cast Whim of Volrath with buyback by paying {2}{U}, targeting Throne of Eldraine.
  3. Orvar's first ability triggers, creating a copy of Throne of Eldraine. Choose "Blue" as its color as it enters the battlefield.
  4. Resolve Whim of Volrath, changing nothing and returning it to your hand.
  5. Repeat.

What the combo produces