Hashaton, Scarab's Fist, Mind Over Matter, Sceptre of Eternal Glory, and Eternal Witness

Prerequisites

• Hashaton, Scarab's Fist on the battlefield
• Mind Over Matter on the battlefield
• Sceptre of Eternal Glory on the battlefield
• Eternal Witness in hand

Steps

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

Results

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