Tawnos, Solemn Survivor, Retreat to Coralhelm, Forsaken Monument, and Treasure Vault

Prerequisites

• Tawnos, Solemn Survivor on the battlefield
• Retreat to Coralhelm on the battlefield
• Forsaken Monument on the battlefield
• Treasure Vault in the graveyard
• Tawnos does not have summoning sickness
• You control at least two artifact tokens
• available

Steps

1. Activate Tawnos' second ability by paying , tapping it, sacrificing two artifact tokens and exiling Treasure Vault from your graveyard, causing you to create a token of Treasure Vault
2. When the Treasure Vault token enters the battlefield, Retreat to Coralhelm triggers, untapping Tawnos
3. Activate the Treasure Vault token's first ability by tapping it, adding
4. Forsaken Monument triggers, adding
5. Activate Tawnos' first ability by paying and tapping it, creating a copy of the Treasure Vault token and causing you to mill two cards
6. Repeat from step 2

Results

• Infinite landfall triggers
• Infinite self-mill
• Infinite tapped Treasure Vault tokens