Minecraft: Best way to Kill a Wither. 100% Safe! Under 10 seconds!

1.16 version now available. Also works with 1.13, 1.14 and 1.15

Note: No longer works in 1.13. New video here https://youtu.be/JdnBZhZMG_c

Need Nether Stars for beacons but killing the wither scares you? Use this neat trick to kill the wither 100% of the time with no damage.

Link to Google Docs Spreadsheet of locations: https://docs.google.com/spreadsheets/d/1XNtFUMPuwCdZtIwWy1SCQJDPgHByjPDyIEhI0UEtX-Q/edit?usp=sharing

Music Credit: Thief in the Night Kevin MacLeod (incompetech.com)