Spike Feeder, and Sunbond

Prerequisites

• Spike Feeder on the battlefield
• Sunbond on the battlefield

Steps

1. Activate Spike Feeder's last ability by removing a +1/+1 counter from it, gaining 2 life
2. Sunbond triggers, putting two +1/+1 counters on Spike Feeder
3. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers
• Infinite +1/+1 counters on creatures you control