Mnemonic Wall + Mythos of Illuna + Radiate

Mana needed: {5}{U}{U}{R}{R}

GUR identity

Commander legal

The 3 combo pieces

What must be in place

There are permanents on the battlefield that enter the battlefield untapped and produce at least {3}{R}{R}.

How to execute it

  1. Cast Mythos of Illuna by paying {2}{U}{U}, targeting anything but Mnemonic Wall.
  2. In response, cast Radiate by paying {3}{R}{R}, creating copies of Mythos of Illuna that target each permanent besides the original target.
  3. Resolve all copies of Mythos of Illuna besides the original, creating token copies of each permanent besides the original target.
  4. The token copy of Mnemonic Wall enters the battlefield, triggering itself, returning Radiate from your graveyard to your hand.
  5. Activate the token lands or other mana-producing permanents created in step 3 by tapping them, adding at least {3}{R}{R}.
  6. Repeat from step 2, doubling the number of copies created in step 3 each repetition.

What the combo produces