Spike Feeder, Unspeakable Symbol, and Corpsejack Menace

Prerequisites

• Spike Feeder on the battlefield
• Unspeakable Symbol on the battlefield
• Corpsejack Menace on the battlefield
• Your life total is at least 4

Steps

1. Activate Unspeakable Symbol by paying 3 life, putting two +1/+1 counters on Spike Feeder
2. Activate Spike Feeder's second ability twice by removing two +1/+1 counters from it, causing you to gain 4 life
3. Repeat

Results

• Infinite +1/+1 counters
• Infinite lifegain
• Infinite lifegain triggers