Rhet-Tomb Mystic, New Perspectives, and Golgari Brownscale

Prerequisites

• Rhet-Tomb Mystic on the battlefield
• New Perspectives on the battlefield
• Golgari Brownscale in hand
• You have at least seven cards in hand

Steps

1. Activate Golgari Brownscale's cycling ability by paying and discarding it, causing you to mill a number of cards and return Golgari Brownscale from your graveyard to your hand due to its dredge ability
2. Repeat

Results

• Infinite self-mill