Fury Storm + Deekah, Fractal Theorist

Prerequisites

• You have cast your commander from your command zone this game.
• An additional instant or sorcery in hand with the mana to cast it, or an opponent has cast an as of yet unresolved instant or sorcery spell.

Steps

1. 1Cast your additional instant or sorcery spell, or wait for an opponent to cast one.
2. 2Deekah triggers, creating a Fractal creature token.
3. 3Cast Fury Storm targeting the instant or sorcery spell.
4. 4Deekah triggers, creating a Fractal creature token.
5. 5Fury Storm triggers, copying itself for each time you have cast your commander from your command zone this game and choosing the original copy of Fury Storm as the target.
6. 6Deekah triggers for each copy, creating a Fractal creature token each time.
7. 7Resolve a Fury Storm copy, copying Fury Storm and choosing the original Fury Storm as the target.
8. 8Deekah triggers, creating a Fractal creature token.
9. 9Repeat from step 7.

Effects

• Infinite creature tokens
• Infinite magecraft triggers