Agatha's Soul Cauldron, Spike Feeder, and Voice of the Blessed

Prerequisites

• Agatha's Soul Cauldron on the battlefield
• Spike Feeder in exile
• Voice of the Blessed on the battlefield
• Voice of the Blessed has at least one +1/+1 counter on it

Steps

1. Activate Voice of the Blessed using Spike Feeder's second ability by removing a +1/+1 counter from it, causing you to gain 2 life
2. Voice of the Blessed triggers, putting a +1/+1 counter on itself
3. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers