Fiendish Blessing. The AC of the cambion includes its Charisma bonus.

Innate Spellcasting. The cambion's spellcasting ability is Charisma (spell save DC 15). The cambion can innately cast the following spells, requiring no material components:

3/day each: alter self, command, detect magic
1/day: plane shift (self only)

Multiattack. The cambion makes two melee attacks or uses its Poison Ray twice.

Battleaxe. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) slashing damage, or 9 (1d10 + 4) slashing damage if used with two hands to make a melee attack, plus 3 (1d6) poison damage.

Poison Ray. Ranged Spell Attack: +7 to hit, range 120 ft., one target. Hit: 10 (3d6) poison damage.

Fiendish Charm. One humanoid the cambion can see within 30 feet of it must succeed on a DC 15 Wisdom saving throw or be magically charmed for 1 day. The charmed target obeys the cambion's spoken commands. If the target suffers any harm from the cambion or another creature or receives a suicidal command from the cambion, the target can repeat the saving throw, ending the effect on itself on a success. If a target's saving throw is successful, or if the effect ends for it, the creature is immune to the cambion's Fiendish Charm for the next 24 hours.