Pemmin's Aura, North Pole Patrol, and Rikala, Homarid King

Prerequisites

• Pemmin's Aura on the battlefield
• North Pole Patrol on the battlefield
• Rikala, Homarid King on the battlefield
• available

Steps

1. Activate an Island by tapping it, adding
2. Rikala triggers, adding
3. Activate North Pole Patrol by tapping it, untapping the Island
4. Activate Pemmin's Aura by paying , untapping North Pole Patrol
5. Repeat from step 1

Results

• Infinite blue mana
• Infinite mana permanents you control can produce
• Infinite untap of permanents you control