Arcum Dagsson, March of the Machines, Intruder Alarm, and Genesis Chamber

Prerequisites

• Arcum Dagsson on the battlefield
• March of the Machines on the battlefield
• Intruder Alarm on the battlefield
• Genesis Chamber on the battlefield
• Arcum Dagsson does not have summoning sickness

Steps

1. Activate Arcum Dagsson's Ability, sacrificing any other artifact creature
2. When the card you search for enters the battlefield, it is an artifact creature due to March of the Machines, and thus triggers Intruder Alarm and Genesis Chamber
3. Untap Arcum Dagsson with Intruder Alarm
4. Generate a 1/1 Myr artifact creature token with Genesis Chamber
5. Repeat the combo from the top by sacrificing the Myr token

Results

• Infinite Untaps
• Tutor all noncreature artifacts from your library onto the battlefield