Tawnos, Solemn Survivor, Intruder Alarm, and Priest of Gix

Prerequisites

• Tawnos, Solemn Survivor on the battlefield
• Intruder Alarm on the battlefield
• Priest of Gix 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 , sacrificing two artifact tokens, and exiling Priest of Gix from your graveyard, creating a token copy of Priest of Gix that is an artifact in addition to its other types
2. The Priest of Gix token enters the battlefield, triggering itself and Intruder Alarm
3. Resolve the Priest of Gix trigger, adding
4. Resolve the Intruder Alarm trigger, untapping all creatures
5. Activate Tawnos' first ability by paying and tapping it, creating a token copy of the Priest of Gix token, and causing you to mill two cards
6. Repeat from step 2
7. Once you have infinite black mana, you may instead choose any other artifact token(s) to make infinite copies of them

Results

• Infinite black mana
• Infinite copies of artifact tokens you control
• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite self-mill
• Infinite untap of all creatures