Melira, Sylvok Outcast, Woe Strider, and Puppeteer Clique

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Woe Strider on the battlefield
• Puppeteer Clique on the battlefield

Steps

1. Activate Woe Strider 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 Woe Strider ability
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite scry 1
• Put all creature cards from each opponent's graveyard onto the battlefield under your control