Requires

Steps

1. Activate Altar of Dementia by sacrificing Optimus Prime, Hero.
2. When Optimus Prime, Hero dies, its second ability triggers, returning it from your graveyard to the battlefield as Optimus Prime, Autobot Leader.
3. Activate Altar of Dementia by sacrificing Optimus Prime, Autobot Leader.
4. When Optimus Prime, Autobot Leader dies, Luminous Broodmoth triggers, returning Optimus Prime from your graveyard to the battlefield as Optimus Prime, Hero with a flying counter on it.
5. Resolve both Altar of Dementia abilities from steps 1 and 3, causing target player to mill cards equal to Optimus Prime, Hero and Optimus Prime, Autobot Leader's combined power.
6. Repeat.

Results