Grumgully, the Generous, Kitchen Finks, and Ashnod's Altar

Prerequisites

• Grumgully, the Generous on the battlefield
• Kitchen Finks on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Kitchen Finks, adding
2. Kitchen Finks' persist ability triggers, returning it to the battlefield with zero -1/-1 counters on it due to Grumgully
3. Kitchen Finks entering the battlefield, causing you to gain two life
4. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite sacrifice triggers