How can you create a combo with Voltaic Construct, Mana Vault, Sydri, Galvanic Genius?
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[START OF COMBO]This combo can be formed with Voltaic Construct, Mana Vault, Sydri, Galvanic Genius

Color identity: WUB
Mana cost: {U}
Steps:
  1. Activate Sydri's first ability by paying {U}, causing Mana Vault to become an artifact creature until end of turn.
  2. Activate Mana Vault by tapping it, adding {C}{C}{C}.
  3. Activate Voltaic Construct by paying {2}, untapping Mana Vault.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Mana Vault does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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