How can you create a combo with Arbor Elf, Freed from the Real, Fertile Ground?
user
[START OF COMBO]This combo can be formed with Arbor Elf, Freed from the Real, Fertile Ground

Color identity: GU
Mana cost: 
Steps:
  1. Activate Arbor Elf by tapping it, untapping the enchanted forest.
  2. Activate the Forest by tapping it, adding {U}{G}.
  3. Activate Freed from the Real by paying {U}, untapping Arbor Elf.
  4. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Freed from the Real attached to Arbor Elf.
  - Fertile Ground attached to a Forest you control.
[END OF COMBO PREREQUISITES]
assistant