How can you create a combo with Void Mirror, Knowledge Pool?
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[START OF COMBO]This combo can be formed with Void Mirror, 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 the player to cast another card exiled by Knowledge Pool without paying its mana cost.
  2. If the player chooses to cast a spell, Void Mirror triggers, countering that spell since no colored mana was spent to cast it.[END OF COMBO STEPS]

Result:
  - Counter all spells players cast from their hands[END OF COMBO RESULT][END OF COMBO]

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