How can you create a combo with Soulless Jailer, Knowledge Pool?
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[START OF COMBO]This combo can be formed with Soulless Jailer, Knowledge Pool

Color identity: C
Mana cost: 
Steps:
  1. Whenever a player casts a spell from their hand, Knowledge Pool triggers, exiling the spell and allowing them to cast another nonland card exiled by Knowledge Pool without paying its mana cost.
  2. Because Soulless Jailer prevents noncreature spells from being cast from exile, no player may cast noncreature spells as permitted by Knowledge Pool.[END OF COMBO STEPS]

Result:
  - Exile all spells players cast from their hand
  - Players cannot cast noncreature spells exiled by Knowledge Pool[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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