Halsin, Emerald Archdruid, Nick Valentine, Private Eye, and Ashnod's Altar

Prerequisites

• Halsin, Emerald Archdruid on the battlefield
• Nick Valentine, Private Eye on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Halsin by paying , causing an artifact token you control to become a 4/4 Bear in addition to its other types until end of turn
2. Activate Ashnod's Altar by sacrificing the Bear, adding
3. When the Bear dies, Nick Valentine triggers, creating a Clue token
4. Repeat

Results

• Infinite LTB
• Infinite card draw
• Infinite colorless mana
• Infinite death triggers
• Infinite draw triggers
• Infinite sacrifice triggers