Bone Golem

Berserk. Add the start of the Bone Golem turn rol a 1d6 On a 6, the Golem goes berserk. On each of its turns while berserk, the Golem attacks the nearest creature it can see. 

The golem must be able to hear its creator, who must take an action to make a DC 15 Charisma.

Claw Attack. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:  (2d4 + 3) [Slashing] damage. target make s a CON safe on fail take 1d4 Necrosis DMG.

Bone Cage . RangedWeapon Attack: +3 to hit, range 40/# ft., one target. Hit: 3. target become incaged in a bone cage and make s a DC  STR check to break free.

Opportunity Attack.