How can you create a combo with Guile, Flusterstorm?
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[START OF COMBO]This combo can be formed with Guile, Flusterstorm

Color identity: U
Mana cost: {U} plus enough mana to cast the instant or sorcery card
Steps:
  1. Cast the additional instant or sorcery spell.
  2. Holding priority, cast Flusterstorm by paying {U}, targeting the instant or sorcery.
  3. Flusterstorm's storm ability triggers, creating a copy of Flusterstorm for each spell you've cast before it this turn, with each copy targeting the original Flusterstorm.
  4. Resolve a copy of Flusterstorm, exiling Flusterstorm and allowing you to cast it from exile without paying its mana cost, targeting the instant or sorcery spell.
  5. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite magecraft triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Guile must be on the battlefield
  - Flusterstorm must be in your hand
  - You have an additional instant or sorcery card in hand.
[END OF COMBO PREREQUISITES]
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