How can you create a combo with Giada, Font of Hope, Twilight Shepherd, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Giada, Font of Hope, Twilight Shepherd, Altar of Dementia

Color identity: W
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Twilight Shepherd Twilight Shepherd's persist ability triggers, returning it to the battlefield with that many +1/+1 counter on it for each Angel you already control.
  2. Resolve the Altar of Dementia's ability, causing target player to mill cards equal to sacrificed creature's power.
  3. Repeat.[END OF COMBO STEPS]

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

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