Niv-Mizzet, Parun, Compost, Painter's Servant, and Mindcrank

Prerequisites

• Niv-Mizzet, Parun on the battlefield
• Compost on the battlefield
• Painter's Servant on the battlefield
• Mindcrank on the battlefield
• "Black" chosen with Painter's Servant
• You have a way to draw a card

Steps

1. Draw a card
2. Niv-Mizzet triggers, dealing 1 damage to target opponent
3. Mindcrank triggers, causing that player to mill a card
4. Compost triggers, drawing you a card
5. Repeat steps 2-4

Results

• Infinite card draw
• Near-infinite damage