Rhet-Tomb Mystic, New Perspectives, and Grave-Shell Scarab

Prerequisites

• Rhet-Tomb Mystic on the battlefield
• New Perspectives on the battlefield
• Grave-Shell Scarab in hand
• You have at least seven cards in hand

Steps

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

Results

• Infinite self-mill