Cognizance

You touch a willing creature, allowing them to add their proficiency bonus to all initiative rolls and all Intelligence-based skill checks for the duration. You can only have one instance of this spell active at a time. It may help to lower madness by 1 level, on a successful roll of a 5-6 on a d6 each time this spell is cast upon the target granting a sense of sanity or normalcy to the creature. 

If cast with a 5th level spell slot or higher, the chances of returning the target to sanity increases; as long as the player does not roll a 1 on a d6 when the spell is cast, their madness level reduces by 1 level. 

Creation Source: variant spell remake from "Grimlore's Grimoire"  by Trevor Armstrong, published on DM's Guild (free)