Chishiro, the Shattered Blade, Night of Souls' Betrayal, Sword of the Meek, and Grinding Station

Prerequisites

• Chishiro, the Shattered Blade on the battlefield
• Night of Souls' Betrayal on the battlefield
• Sword of the Meek in hand
• Grinding Station on the battlefield
• available

Steps

1. Cast Sword of the Meek by paying
2. Sword of the Meek enters the battlefield, triggering Grinding Station and Chishiro's first ability
3. Resolve the Grinding Station trigger, untapping it
4. Holding priority, activate Grinding Station by tapping it and sacrificing Sword of the Meek, causing target player to mill three cards
5. Resolve the Chishiro trigger, creating a 2/2 Spirit creature token that enters as a 1/1 due to Night of Souls' Betrayal
6. The Spirit enters the battlefield, triggering Sword of the Meek, returning Sword of the Meek from your graveyard to the battlefield attached to the Spirit token
7. Repeat from step 2

Results

• Infinite creature tokens
• Infinite ETB
• Infinite mill
• Infinite self-mill