Haakjir 2014
CR 3 monstrosity
Medium monstrosity, neutral
Can climb difficult earth or stone surfaces including upside down on ceilings with o an ability check.
Can burrow through nonmagical unworked earth/stone with o disturbing material it moves through.
Its claws easily meld through stone and metal. When it makes a Claw attack vs. creature wearing nonmagical metal armor or wielding a nonmagical metal shield attack ignores AC bonus of armor or shield. If target is a construct made of stone or metal attack ignores AC bonus provided by natural armor if any.
Advantage on attacks vs. creature if 1+ unincapacitated attacker ally is within 5 ft. of target.
Advantage: Dex (Stealth) to hide in rocky terrain.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details