Kami of Industry, Cursed Mirror, and Leyline of Singularity

Prerequisites

• Kami of Industry on the battlefield
• Cursed Mirror in hand
• Leyline of Singularity on the battlefield
• available

Steps

1. Cast Cursed Mirror by paying , having it enter the battlefield as a copy of Kami of Industry with haste
2. Put Cursed Mirror into your graveyard due to the legend rule
3. Cursed Mirror's enters the battlefield ability triggers, returning itself from your graveyard to the battlefield as a copy of Kami of Industry with haste
4. Repeat from step 2

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB