How can you create a combo with Saffi Eriksdotter, Reveillark, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with Saffi Eriksdotter, Reveillark, Altar of Dementia

Color identity: GW
Mana cost: 
Steps:
  1. Activate Saffi by sacrificing it, targeting Reveillark.
  2. Activate Altar of Dementia by sacrificing Reveillark.
  3. When Reveillark dies, it and Saffi trigger.
  4. Resolve the Saffi trigger, returning Reveillark from your graveyard to the battlefield.
  5. Resolve the Reveillark trigger, returning Saffi from your graveyard to the battlefield.
  6. Resolve the Altar of Dementia ability from step 2, causing target player to mill cards equal to Reveillark's power.
  7. 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