Bone Caller

Magic Resistance. The Bone Caller has advantage on all saving throws against spells and magical effects.

Turning Defiance. The Bone Caller and any undead within 30 feet of it have advantage on saving throws against effects that turn undead.

Multi Attack. The Bone Caller makes 4 Claw attacks.

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 7 (1d6+ 4) slashing damage. 

Bone Missiles. Ranged Spell Attack: Auto Hit, range 200 ft., Up to 3 targets (you may target the same creature multiple times). Hit: 3 (1d4 + 1) force damage.

Call the Bones (Recharge 6). The Bone Caller lets out a necromantic chant and summons up to 4 skeletons in unoccupied spaces within 30 feet of the Bone Caller under its control. The Bone caller can never control more than 4 skeletons at a time. These skeletons obey the Bone Callers commands and the Bone Caller can command them telepathically without using any actions, as long as they are on the same plane as the Bone Caller.

Blink-Dash. The Bone Caller channels its evil energy for a short range teleport. The Bone Caller can teleport to any unoccupied space it can see within 15 feet of it. Once it arrives the Bone Caller must immediately use its Action to either Multi Attack or use its Bone Missiles. After the action is finished, the Bone Caller teleports back to its original location. If it can't, it takes 1D10 force damage and is pushed to the nearest unoccupied space. This does not provoke attacks of opportunity.

Bone Shield. Whenever the Bone Caller would be hit by an attack it can use its reaction to destroy a skeleton under its control that is within 30 feet if the Bone Caller. If it does, raise its Armor Class by 5 until its next turn as a wall of spectral bones protects the Bone Caller. Spells like counterspell can stop this effect.