How can you create a combo with Brago, King Eternal, Lithoform Engine, Sol Ring?
user
[START OF COMBO]This combo can be formed with Brago, King Eternal, Lithoform Engine, Sol Ring

Color identity: WU
Mana cost: 
Steps:
  1. Deal combat damage with Brago.
  2. Brago triggers.
  3. In response, activate artifacts you control by tapping them, adding at least {C}{C}.
  4. Activate Lithoform Engine's first ability by paying {2} and tapping it, copying Brago's triggered ability.
  5. Resolve the copied triggered ability, blinking Lithoform Engine, the artifacts that tapped for mana, and any number of nonland permanents you control.
  6. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite blinking of nonland permanents
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana artifacts you control can produce[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control artifacts that can tap to add at least {2}.
  - Brago does not have summoning sickness.
  - Opponents cannot block and kill Brago.
[END OF COMBO PREREQUISITES]
assistant