Olivia, Mobilized for War, Evereth, Viceroy of Plunder, and Fecundity

Prerequisites

• Olivia, Mobilized for War on the battlefield
• Evereth, Viceroy of Plunder on the battlefield
• Fecundity on the battlefield

Steps

1. Activate Evereth by sacrificing the persist creature
2. When the persist creature dies, it and Fecundity trigger
3. Resolve the Fecundity trigger, causing you to draw a card
4. Resolve the persist creature's trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it
5. When the persist creature enters the battlefield, Olivia triggers, putting a +1/+1 counter on the persist creature and causing you to discard a card
6. Resolve the Evereth ability
7. Repeat

Results

• Infinite draw triggers
• Infinite looting
• Infinite self-discard triggers
• Near-infinite +1/+1 counters on a creature
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite creature sacrifice triggers
• Near-infinite death triggers
• Near-infinite damage