Halsin, Emerald Archdruid + Nick Valentine, Private Eye + Thermopod

Prerequisites

• You control an artifact token.

Steps

1. 1Activate 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. 2Activate Thermopod by sacrificing the Bear, adding .
3. 3When the Bear dies, Nick Valentine triggers, creating a Clue token.
4. 4Repeat.

Effects

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers