Sly Requisitioner, Salvaging Station, Krark-Clan Ironworks, and Sol Ring

Prerequisites

• Sly Requisitioner on the battlefield
• Salvaging Station on the battlefield
• Krark-Clan Ironworks on the battlefield
• Sol Ring on the battlefield

Steps

1. Activate Krark-Clan Ironworks by sacrificing Sol Ring, adding
2. Sol Ring leaves the battlefield, triggering Sly Requisitioner, creating a 1/1 Servo artifact creature token
3. Activate Krark-Clan Ironworks by sacrificing the Servo, adding
4. The Servo dies, triggering Salvaging Station, untapping Salvaging Station
5. Activate Salvaging Station by tapping it, returning Sol Ring from your graveyard to the battlefield
6. Repeat

Results

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