Requires

Trudge Garden must be on the battlefield. Ashnod's Altar must be on the battlefield. Answered Prayers must be on the battlefield. You have a way to gain life. Mana needed:

Steps

1. Gain any amount of life.
2. Trudge Garden triggers, causing you to pay to create a 4/4 Fungus Beast creature token.
3. The Fungus Beast enters the battlefield, triggering Answered Prayers.
4. Holding priority, activate Ashnod's Altar by sacrificing the Fungus Beast, adding .
5. Resolve the Answered Prayers trigger, causing you to gain 1 life.
6. Repeat from step 2.

Results