Staff of Domination, Nyxbloom Ancient, Kelpie Guide, and Boros Garrison

Prerequisites

• Staff of Domination on the battlefield
• Nyxbloom Ancient on the battlefield
• Kelpie Guide on the battlefield
• Boros Garrison on the battlefield

Steps

1. Activate Boros Garrison by tapping it, adding due to Nyxbloom Ancient Activate Kelpie Guide by tapping it, untapping Boros Garrison Activate Staff of Domination's third ability by paying and tapping it, untapping Kelpie Guide
2. Activate Staff of Domination's first ability by paying , untapping it
3. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite red mana
• Infinite white mana
• Infinite mana permanents you control can produce
• Infinite untap of permanents you control