Saffi Eriksdotter, Karmic Guide, and Hammerhead, Maggia Boss

Prerequisites

• Saffi Eriksdotter on the battlefield
• Karmic Guide on the battlefield
• Hammerhead, Maggia Boss on the battlefield

Steps

1. Activate Saffi by sacrificing it, targeting Karmic Guide Activate Hammerhead by sacrificing Karmic Guide When Karmic Guide dies, Saffi triggers, returning Karmic Guide from your graveyard to the battlefield
2. When Karmic Guide enters, it triggers, returning Saffi from your graveyard to the battlefield
3. Resolve the Hammerhead ability
4. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers