Cleric Class, Crystalline Crawler, Pemmin's Aura, and Kwain, Itinerant Meddler

Prerequisites

• Cleric Class on the battlefield
• Crystalline Crawler on the battlefield
• Pemmin's Aura on the battlefield
• Kwain, Itinerant Meddler on the battlefield

Steps

1. Activate Kwain by tapping it, causing you to draw a card and gain 2 life, and allowing each opponent to draw a card and gain 1 life
2. Cleric Class triggers, putting a +1/+1 counter on Crystalline Crawler
3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding
4. Activate Pemmin's Aura's first ability by paying , untapping Kwain
5. Repeat

Results

• Near-infinite lifegain
• Near-infinite lifegain triggers
• Near-infinite card draw for all players