How can you create a combo with Basalt Monolith, Myr Welder, Biomancer's Familiar?
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[START OF COMBO]This combo can be formed with Basalt Monolith, Myr Welder, Biomancer's Familiar

Color identity: GU
Mana cost: 
Steps:
  1. Activate Myr Welder using Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  2. Activate Myr Welder using Basalt Monolith's second ability by paying {1}, untapping it.
  3. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Basalt Monolith must be exiled
  - Myr Welder must be on the battlefield
  - Biomancer's Familiar must be on the battlefield
[END OF COMBO PREREQUISITES]
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