Underworld Breach, Brightstone Ritual, and Ambassador Laquatus

Prerequisites

• Underworld Breach on the battlefield
• Brightstone Ritual in the graveyard
• Ambassador Laquatus on the battlefield
• undefined available

Steps

1. Cast Brightstone Ritual from your graveyard for its escape cost by paying and exiling three other cards from your graveyard, adding at least
2. Activate Ambassador Laquatus by paying , causing you to mill three cards
3. Repeat

Results

• Infinite self-mill