Karn, Silver Golem, Salvaging Station, Grinding Station, and Mana Vault

Prerequisites

• Karn, Silver Golem on the battlefield
• Salvaging Station on the battlefield
• Grinding Station on the battlefield
• Mana Vault on the battlefield

Steps

1. Activate Mana Vault by tapping it, adding
2. Activate Karn by paying , causing Mana Vault to become an artifact creature until end of turn
3. Activate Grinding Station by tapping it and sacrificing Mana Vault
4. When Mana Vault dies, Salvaging Station triggers, untapping Salvaging Station
5. Resolve the Grinding Station ability, causing target player to mill three cards
6. Activate Salvaging Station by tapping it, returning Mana Vault from your graveyard to the battlefield
7. When Mana Vault enters the battlefield, Grinding Station triggers, untapping Grinding Station
8. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill