How can you create a combo with Myr Welder, Freed from the Real, Prismatic Geoscope?
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[START OF COMBO]This combo can be formed with Myr Welder, Freed from the Real, Prismatic Geoscope

Color identity: U
Mana cost: 
Steps:
  1. Activate Myr Welder using Prismatic Geoscope's ability by tapping it, adding at least {1}{U}.
  2. Activate Freed from the Real's second ability by paying {U}, untapping Myr Welder.
  3. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Myr Welder must be on the battlefield
  - Freed from the Real must be on the battlefield
  - Prismatic Geoscope must be exiled
  - Freed from the Real attached to Myr Welder.
  - Myr Welder does not have summoning sickness.
  - Lands you control have at least two basic land types.
[END OF COMBO PREREQUISITES]
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