Ezzaroot Channeler, Crystalline Crawler, Pemmin's Aura, and Heliod, Sun-Crowned

Prerequisites

• Ezzaroot Channeler on the battlefield
• Crystalline Crawler on the battlefield
• Pemmin's Aura on the battlefield
• Heliod, Sun-Crowned on the battlefield
• Pemmin's Aura attached to Ezzaroot Channeler
• Ezzaroot Channeler does not have summoning sickness

Steps

1. Activate Ezzaroot Channeler by tapping it, causing you to gain two life
2. Heliod 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 Ezzaroot Channeler
5. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers