The Ore Grub is a block sized hostile mob that hides in a variety of different underground and end ores.
Health
3
Attack
1-10
Behavior
Ore Grubs attack players when they least expect it, and can only be dealt damage with Pickaxes and Mining Hammers. The more valuable the ore type, the more health and damage the Ore Grub has.
You can see the health of the Ore Grub based on the amount of mining cracks visible on its body.
Spawning
There is a 5% chance for an Ore Grub to spawn when some ore blocks are mined.