Draining Kiss

You may target any being within touch for a kiss. The target must either be living or possess a soul. They make a Constitution saving throw contested by a Charisma check + your Charisma modifier by you. If they fail they take 1d4 + your charisma modifier of both psychic and necrotic damage, you only need to roll once as the roll is for both damage types. You also heal the amount rolled with no modifier. If they fall to 0 hp they die. If they succeed they take half the amount rolled as damage of both types and you do not heal the amount rolled. If he creature is charmed you my do this a reaction and automatically succeed but the charm is broken that moment. If in combat against the target then you have disadvantage. At every 4th character level add one additional d6 to your roll.