Arcane Husk

Fallow Rot.The first time the Arcane Husk takes damage, any living creature within 5 feet of the zombie must succeed on a DC 14 Constitution saving throw or gain disadvantage on attack rolls, saving throws, and ability checks for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on it early with a successful save.

Gnawing Hunger. When the Arcane Husk moves 15 feet in a straight line towards a target and gets within 5 feet, it can use a bonus action to atempt to grapple the target.

Arcane Drain. When grappling a target, the Arcane Husk attempts to drain the target of it's magical essence. The target must roll a DC 16 Con Save, on a failure the Spell Eater absorbs 1d4 spell slot. If the target does not have magical talent, the target takes one level of exhaustion. If a target is drained of all spell slots or takes six levels of exhaustion, it dies and becomes a Spell Eater instantly and the Spell Eater reverts to it's living form for 24 hours before it returns to Spell Eater form.