Hourglass of the Lost + Intruder Alarm + Kate Stewart + March of the Machines

URW identity

Commander legal

The 4 combo pieces

• Hourglass of the Lost
• Intruder Alarm
• Kate Stewart
• March of the Machines

How to execute it

1. Activate Hourglass of the Lost's first ability by tapping it, adding {W} and putting a time counter on it.
2. Kate's first ability triggers, creating a 1/1 Soldier creature token.
3. When the Soldier enters, Intruder Alarm triggers, untapping all creatures.
4. Repeat

What the combo produces

• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of creatures
• Infinite white mana
• Infinitely large creatures you control until end of turn