How can you create a combo with Archetype of Imagination, Stormtide Leviathan?
user
[START OF COMBO]This combo can be formed with Archetype of Imagination, Stormtide Leviathan

Color identity: U
Mana cost: 
Steps:
  1. All creatures your opponents control lose flying.
  2. Stormtide prevents creatures without flying or islandwalk from attacking.[END OF COMBO STEPS]

Result:
  - Opponents' creatures without islandwalk cannot attack[END OF COMBO RESULT][END OF COMBO]

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