Bone Horse

Multiattack- The bone horse makes two Hoof attacks. If the Bone Horse has grappled a creature it can forfeit one of these attacks to use Bone Theft 

Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Bone theft- Bone Horse tears at the limb of a grappled creature the creature must make a dc 15 str or dex save on a success they take half damage. 3d6+4 slashing 2d4 necrotic 

Bone Fling- The Bone Horse flings a Bone at an enemy the creature must make a dc 12 con save or be stunned until the end of their next turn. 

Bone grab- The Bone Horse attempts to grab a creatures limb, The Bone Horse can grapple a creature. 

Scatter- When The Bone Horse is targeted for an attack it dismantles it's self and can take halve damage on that attack.

Screech- When The Bone Horse is hit with an attack it can use screech any creature within 30ft of the Bone Horse must make a dc 15 wis save or be frightened until the end of the Bone Horses next turn.