Ghired, Mirror of the Wilds, and Breaching Hippocamp

Prerequisites

• Ghired, Mirror of the Wilds on the battlefield
• Breaching Hippocamp on the battlefield
• You have a way to create a token copy of Breaching Hippocamp

Steps

1. Create a token copy of Breaching Hippocamp
2. Activate Ghired by tapping it, creating a token copy of the Breaching Hippocamp copy
3. When the Breaching Hippocamp token enters the battlefield, it triggers, untapping Ghired
4. Repeat from step 2

Results

• Infinite ETB
• Infinite creature tokens