Procrastination 3000

To get the advancement “Procrastination 3000” you need to:

1. Have a Matrix Energizer.
2. Have a Nether Star.
3. Place the Matrix Energizer on top of a naturally spawned Sculk Shrieker.
4. Use the Nether Star on the Matrix Energizer.
5. Trigger the shrieker until a Personality Matrix comes out.