Sun Titan + Altar of Dementia + Changing Loyalty

Sun Titan

Altar of Dementia

Changing Loyalty

How it works

1. Activate Altar of Dementia by sacrificing Sun Titan.
2. When Sun Titan dies, Changing Loyalty triggers, returning Sun Titan from your graveyard to the battlefield.
3. When Sun Titan enters, it triggers, returning Changing Loyalty from your graveyard to the battlefield attached to Sun Titan.
4. Resolve the Altar of Dementia ability.
5. Repeat.

This clever loop is forged by pairing Sun Titan's ability to pull low-cost permanents from the graveyard with Altar of Dementia's free sacrifice outlet to mill your opponents away. The crucial catalyst is Changing Loyalty, whose enchant-creature trigger ensures that whenever the Titan perishes, it immediately returns to the battlefield under your control rather than staying dead. Because Changing Loyalty itself has a mana value of 3 or less, Sun Titan's entry trigger conveniently loops the aura right back out of the graveyard and onto itself, setting up a perpetual cycle of sacrifice, resurrection, and milling.