Nim Deathmantle, Ashnod's Altar, Ashaya, Soul of the Wild, and Seed the Land

Prerequisites

• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• Ashaya, Soul of the Wild on the battlefield
• Seed the Land on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Ashaya, adding
2. When Ashaya dies, Nim Deathmantle triggers, causing you to pay to return Dryad Arbor from your graveyard to the battlefield, and attaching Nim Deathmantle to it
3. When Ashaya enters the battlefield, Seed the Land triggers, creating a creature token
4. Activate Ashnod's Altar by sacrificing the creature token, adding
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite green mana
• Infinite landfall triggers