Olivia's Attendants, Intruder Alarm, Brawl, and March of the Machines

Prerequisites

• Olivia's Attendants on the battlefield
• Intruder Alarm on the battlefield
• Brawl in hand
• March of the Machines on the battlefield
• Olivia's Attendants does not have summoning sickness
• You have a way to give Olivia's Attendants indestructible
• available

Steps

1. Cast Brawl by paying
2. Give Olivia's Attendants indestructible, if needed
3. Activate Olivia's Attendants by tapping it, dealing damage equal to its power to itself
4. Olivia's Attendants triggers, creating that many Blood artifact tokens
5. The Bloods enter the battlefield as 0/0 creatures due to March of the Machines and die as a state-based action due to having 0 toughness
6. Intruder Alarm triggers that many times, untapping all creatures
7. Repeat from step 3

Results

• Infinite damage to creatures
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite untap of all creatures