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

Prerequisites

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

Steps

1. Activate Sceptre of Eternal Glory by tapping it, adding
2. Activate Mind Over Matter by discarding Greenwarden of Murasa
3. Hashaton triggers, causing you to pay to create a tapped token copy of Greenwarden of Murasa that is a 4/4 Zombie
4. When the Greenwarden of Murasa token enters the battlefield, it triggers, returning Greenwarden of Murasa 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