To kill a witch by dropping it onto pointed dripstone, a good rule of thumb is about 55 blocks of total drop height. Pointed dripstone increases fall damage, so the needed height is much lower than a normal fatal drop; the community rule of thumb for maximum fall-damage setups is roughly 52 blocks, with 55 blocks used as a safe buffer.

Quick Scoop

  • Practical answer: use 55 blocks for a reliable kill.
  • Why that number: pointed dripstone amplifies fall damage, so mobs die from a shorter fall than they would onto a normal surface.
  • Safety margin: a few extra blocks help cover armor, damage rounding, and other edge cases.

What matters

Witches are just mobs for fall-damage purposes, so the same dripstone trap math applies. If you want it to be dependable in survival, 55 blocks is the most commonly suggested “safe” height rather than a bare-minimum value.

Simple build note

A trap usually works best when the witch falls straight onto the pointed dripstone tip with no water, slime, or other landing interruption. If you’re building it for a farm or test chamber, make the shaft a little taller than you think you need.

TL;DR

Use 55 blocks if you want a reliable witch kill on dripstone.