How can you create a combo with Gravity Sphere, Stormtide Leviathan?
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[START OF COMBO]This combo can be formed with Gravity Sphere, Stormtide Leviathan

Color identity: UR
Mana cost: 
Steps:
  1. Gravity Sphere causes all creatures to lose flying.
  2. Stormtide Leviathan prevents non-flying creatures from attacking, and since no creatures can have flying, no creatures can attack.[END OF COMBO STEPS]

Result:
  - Creatures cannot attack you[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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