Vaultborn Tyrant, Trudge Garden, and Ashnod's Altar

Prerequisites

• Vaultborn Tyrant in hand
• Trudge Garden on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Cast Vaultborn Tyrant by paying
2. When Vaultborn Tyrant enters the battlefield, its first ability triggers, causing you to gain 3 life and draw a card
3. Trudge Garden triggers
4. Choose not to pay
5. Activate Ashnod's Altar by sacrificing Vaultborn Tyrant, adding
6. When Vaultborn Tyrant dies, its second ability triggers, creating a token copy of it that is an artifact in addition to its other types
7. When the Vaultborn Tyrant token enters the battlefield, its first ability triggers, causing you to gain 3 life and draw a card
8. Trudge Garden triggers, causing you to pay to create a 4/4 Fungus Beast creature token
9. When the Fungus Beast enters the battlefield, the Vaultborn Tyrant token's first ability triggers
10. Holding priority, activate Ashnod's Altar by sacrificing the Fungus Beast, adding
11. Resolve the Vaultborn Tyrant trigger, causing you to gain 3 life and draw a card
12. Repeat from step 7

Results

• Infinite card draw
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Near-infinite ETB
• Infinite draw triggers
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers