How can you create a combo with Staff of Domination, Clock of Omens, Depth Charge Colossus, Chromatic Orrery?
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[START OF COMBO]This combo can be formed with Staff of Domination, Clock of Omens, Depth Charge Colossus, Chromatic Orrery

Color identity: U
Mana cost: 
Steps:
  1. Activate Chromatic Orrery's first ability by tapping it, adding {5}.
  2. Activate Clock of Omens by tapping Depth-Charge Colossus and Staff of Domination, untapping Chromatic Orrery.
  3. Activate Staff of Domination's first ability by paying {1}, untapping it.
  4. Activate Depth-Charge Colossus by paying {3}, untapping it.
  5. Repeat.
  6. Once you have infinite mana, you may use it to activate Staff of Domination's other abilities.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite colored mana
  - Infinite colorless mana
  - Infinite draw triggers
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite untap of artifacts you control
  - Infinite untap of creatures you control[END OF COMBO RESULT][END OF COMBO]

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