Rukarumel, Biologist, and Intruder Alarm

Prerequisites

• Rukarumel, Biologist on the battlefield
• Intruder Alarm on the battlefield
• Rukarumel does not have summoning sickness
• Creatures you control can tap to produce at least

Steps

1. Activate all mana-producing creatures by tapping them, adding at least
2. Activate Rukarumel by paying and tapping it, creating a 1/1 Sliver creature token
3. When the Sliver 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