Homebrew:Collar of Dawn's Cleansing Light

Wondrous item, uncommon (requires attunement)

While named "collar", this item comes in a variety of forms–studded bands, chokers, torcs, necklaces, and, yes, collars.

You can cast prestidigitation at will. Additionally, you have advantage on saving throws against diseases and effects that would inflict the Poisoned

condition.