Chains of Mephistopheles, Bone Miser, and Darkblast

Prerequisites

• Chains of Mephistopheles on the battlefield
• Bone Miser on the battlefield
• Darkblast in hand

Steps

1. Attempt to draw a card
2. The draw will be replaced by Chains of Mephistopheles, causing you to instead discard Darkblast
3. Then, you will mill three cards and return Darkblast from your graveyard to your hand due to Darkblast's dredge ability
4. Bone Miser's third ability triggers, attempting to have you draw a card
5. The draw will be replaced by Chains of Mephistopheles, causing you to instead discard Darkblast
6. Then, you will mill three cards and return Darkblast from your graveyard to your hand due to Darkblast's dredge ability
7. Repeat step 2

Results

• Infinite self-mill