Horseshoe Crab, Mesmeric Orb, and Paradise Mantle

Prerequisites

• Horseshoe Crab on the battlefield
• Mesmeric Orb on the battlefield
• Paradise Mantle on the battlefield
• Horseshoe Crab does not have summoning sickness
• Paradise Mantle attached to Horseshoe Crab

Steps

1. Activate Horseshoe Crab by tapping it, adding
2. Activate Horseshoe Crab by paying , untapping Horseshoe Crab
3. Mesmeric Orb triggers, causing you to mill a card
4. Repeat

Results

• Infinite self-mill
• Infinite tap triggers