How can you create a combo with Puresight Merrow, Cryptolith Rite?
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[START OF COMBO]This combo can be formed with Puresight Merrow, Cryptolith Rite

Color identity: GWU
Mana cost: 
Steps:
  1. Activate Puresight Merrow by tapping it, adding {W/U}.
  2. Activate Puresight Merrow by paying {W/U} and untapping it, exiling the top card of your library.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Exile your library[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Puresight Merrow does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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