Orthion, Hero of Lavabrink, and Intruder Alarm

Prerequisites

• Orthion, Hero of Lavabrink on the battlefield
• Intruder Alarm on the battlefield
• Orthion does not have summoning sickness
• Creatures you control can tap to produce at least

Steps

1. Activate all mana-producing creatures you control by tapping them, adding at least
2. Activate Orthion's first ability by paying and tapping it, creating a token copy of any other creature you control with haste
3. When the creature token enters the battlefield, Intruder Alarm triggers, untapping all creatures
4. Repeat
5. If creatures you control can tap to produce at least , this combo nets infinite mana

Results

• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of all creatures