How can you create a combo with Shepherd of the Cosmos, Angelic Renewal, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with Shepherd of the Cosmos, Angelic Renewal, Altar of Dementia

Color identity: W
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Shepherd of the Cosmos.
  2. Shepherd of the Cosmos dies, triggering Angelic Renewal, causing you to sacrifice Angelic Renewal and return Shepherd of the Cosmos from your graveyard to the battlefield.
  3. Shepherd of the Cosmos enters the battlefield, returning Angelic Renewal from your graveyard to the battlefield.
  4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Shepherd of the Cosmos' power.
  5. Repeat.[END OF COMBO STEPS]

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

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