Altar of Dementia + Melira, Sylvok Outcast + Puppeteer Clique

BG identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Melira, Sylvok Outcast
• Puppeteer Clique

How to execute it

1. Activate Altar of Dementia by sacrificing Puppeteer Clique.
2. When Puppeteer Clique dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira.
3. When Puppeteer Clique enters, it triggers, putting a creature from an opponent's graveyard onto the battlefield under your control.
4. Resolve the Altar of Dementia ability.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Put all creature cards from each opponent's graveyard onto the battlefield under your control