How can you create a combo with Gravebane Zombie, Rooftop Storm, Altar of Dementia, Future Sight?
user
[START OF COMBO]This combo can be formed with Gravebane Zombie, Rooftop Storm, Altar of Dementia, Future Sight

Color identity: UB
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Gravebane Zombie.
  2. Gravebone Zombie is put on top of your library instead of into your graveyard.
  3. Resolve the Altar of Dementia ability, causing target opponent to mill cards equal to Gravebane Zombie's power.
  4. Cast Gravebane Zombie from the top of your library by paying {0}.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

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