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

Bloodcharm

When a creature charmed by the Bloodcharmer would take an action, the Bloodcharmer can end the charm effect on them, and activate this trait. The creature fails to perform its action, takes 2d6 necrotic damage, and heals the Bloodcharmer 2d6 hit points.

Multiattack. The Bloodcharmer makes 2 attacks with its talons.

Talons. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) slashing damage. In addition, the target must make a DC 16 wisdom saving throw. On a failure, they are charmed for one minute.

Stunning Screech (1/Day). The Bloodcharmers emits a horrific screech. Each creature within 20 feet of it that can hear it and that isn't a demon must succeed on a DC 16 Constitution saving throw or be stunned until the end of the Bloodcharmers next turn. Alternatively, the Bloodcharmer can choose to charm the effected creatures until then.