Put all creature cards from each opponent's graveyard onto the battlefield under your controlInfinite creature ETBInfinite creature LTBInfinite colorless manaInfinite death triggersInfinite creature sacrifice triggers
How it works
Activate Ashnod's Altar by sacrificing Puppeteer Clique.
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.
When Puppeteer Clique enters, it triggers, putting a creature from an opponent's graveyard onto the battlefield under your control.