Blood Demon

Initiative Advantage. The Blood Demon has advantage on initiative rolls.

Magic Resistance. The Blood Demon has advantage on saving throws against spells and other magical effects. 

Innate Spellcasting. The Blood Demon's spellcasting ability is Charisma (spell save DC 12). The Blood Demon can innately cast the following spells, requiring no material components:

At will: 1/day each: Blood charm ([spell]charm person[/spell]), Caustic Wound

Multiattack. The Blood Demon makes two slam attacks.

Slam. Natural Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage.

Blood Spike. Natural Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) piecring, or slashing damage.

Blood Axe. Natural Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) slashing damage.

Blood Spear. Natural Ranged Weapon Attack: +6 to hit, range 30 ft.., one target. Hit: 8 (1d8 + 4) piecring damage.

Caustic Wound. 1st-level transmutation; Casting Time: 1 reaction, which you take in response to being damaged by a creature with either piercing or slashing damage Range: Self Components: V, S Duration: 1 round You infuse your blood with caustic acid. Until the start of your next turn, when you take piercing or slashing damage, a spray of acidic blood bursts from the wound, including from the triggering response. One creature in a 10-foot cone must make a Dexterity saving throw. A creature takes 1d10 acid damage on a failed save, or half as much damage on a successful one. The acid destroys any susceptible objects in the area that are not worn or carried.