Spitemare, and Soul Link

Prerequisites

• Spitemare on the battlefield
• Soul Link on the battlefield
• Soul Link attached to Spitemare
• You have a way to give Spitemare indestructible
• You have a way to deal damage to Spitemare

Steps

1. Give Spitemare indestructible, and then deal damage to Spitemare
2. Spitemare and Soul Link's second ability trigger
3. Resolve the Soul Link trigger, causing you to gain that much life
4. Resolve the Spitemare trigger, dealing that much damage to itself
5. Spitemare and Soul Link's first and second abilities trigger
6. Resolve both Soul Link triggers, causing you to gain life equal to twice the damage dealt
7. Repeat from step 4

Results

• Infinite lifegain
• Infinite lifegain triggers