Allister's Voodo Magic

You hold up an effigy or doll and link it to a target within sight. The target must make a Wisdom saving throw or be temporarily linked to the compared object. Once linked, any damage dealt to the compared object will transfer over to the target. The object has 60 hit points, 5 armor class, and automatically fails saving throws against spells. The link will end if the effigy or doll loses all of it's hit points or if the caster loses concentration