Mythos of Illuna + Radiate + Codex Shredder

Mythos of Illuna

Radiate

Codex Shredder

How it works

1. Cast Mythos of Illuna by paying 2, targeting anything but Codex Shredder.
2. In response, cast Radiate by paying 3, creating copies of Mythos of Illuna that target each permanent besides the original target.
3. Resolve all copies of Mythos of Illuna, creating token copies of each permanent besides the original target.
4. Activate the token copy of Codex Shredder by paying 5, tapping it, and sacrificing it, 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 8.
6. Repeat from step 2, doubling the number of copies created in step 3 each repetition.