Hashaton, Scarab's Fist, Mind Over Matter, Coveted Jewel, and Gravedigger

Prerequisites

• Hashaton, Scarab's Fist on the battlefield
• Mind Over Matter on the battlefield
• Coveted Jewel on the battlefield
• Gravedigger in hand

Steps

1. Activate Coveted Jewel by tapping it, adding
2. Activate Mind Over Matter by discarding Gravedigger
3. Hashaton triggers, causing you to pay to create a tapped token copy of Gravedigger that is a 4/4 Zombie
4. When the Gravedigger token enters the battlefield, it triggers, returning Gravedigger from your graveyard to your hand
5. Resolve the Mind Over Matter ability, untapping Coveted Jewel
6. Repeat

Results

• Infinite ETB
• Infinite self-discard triggers
• Infinite tapped creature tokens