Cheese Wraith

Incorporeal Movement. The Cheese Wraith can move through other creatures and objects as if they were Difficult Terrain. It takes 5 (1d10) Force damage if it ends its turn inside an object.

Sunlight Sensitivity. While in sunlight, the wraith has Disadvantage on ability checks and attack rolls.

Noxious Smell. The Cheese Wraith emits a vile smell, similar to that of piles of rotten food. Any creature that ends its turn around a Cheese Wraith, or the corpse of one, has to roll a constitution saving throw, dc 14, or take 1d10 poison damage. This effect lasts for up to 12d6 minutes after a Cheese Wraith has died. The effect does not work if there is heavy wind. 

Life Drain. Melee Attack Roll: +6, reach 5 ft. Hit: 21 (4d8 + 3) Necrotic damage. If the target is a creature, its Hit Point maximum decreases by an amount equal to the damage taken.

Create Specter. The wraith targets a pile of cheese within 10 feet of itself that it can see or smell. The cheese pile rises as a [Tooltip Not Found] in the space of the pile or in the nearest unoccupied space. The new Cheese Wraith is under the creator wraith’s control.

Dairy Sense. As a bonus action the Cheese Wraith can stop to smell the air around it. Upon doing this it can discover the location of any cheese within a 50ft. radius, as long as there is not more than 1 wall separating the Cheese Wraith from the cheese.