Ancient Touch

7-level Necromancy (ritual)

You touch a creature with a withering magic. Select a target humanoid and make a magic attack against the creature. On a success, the creature must make a Constitution saving throw or become withered and aged in an instant. The creature’s age is increased to the maximum for its race minus 1d10 years and the creature’s Strength, Dexterity and Constitution scores are reduced by one half (rounded up) for the duration of the spell. If you maintain concentration for the duration of the spell, the effect becomes permanent and can only be removed through a greater restoration or similar spell.