Thran Vigil, Benthic Biomancer, and Golgari Grave-Troll

Prerequisites

• Thran Vigil on the battlefield
• Benthic Biomancer on the battlefield
• Golgari Grave-Troll in hand
• undefined

Steps

1. Put a +1/+1 counter on Benthic Biomancer
2. Benthic Biomancer triggers, causing you to mill six cards and return Golgari Grave-Troll from your graveyard to your hand, and then causing you to discard Golgari Grave-Troll
3. Thran Vigil triggers, putting a +1/+1 counter on Benthic Biomancer
4. Repeat from step 2

Results

• Infinite self-mill