Kamikaze (Thorns + Weakness)

This data pack makes it so that you have weakness 255, which prevents you from using melee attacks, but in return gives you permanent leather botts with thorns level 30. That way you become the weapon, as taking damage is your main way of dealing damage.

You can still use bows, potions and other forms of indirect damage, but you can't use swords or even your hand to attack.

When you enter the end, the boots get replaced with other boots that only have thorns level 5, so be sure to bring lots of arrows.
After you kill the ender dragon, the weakness is gone.

Good Luck!