Broken Key Rework

I dont think the key should be able to open the hatch, maybe it could have a buff to the aura reading timer since you kind of need to bring at least one timer increase to be able to use it, wasting an add on slot in the process.

Although there was a recent fix to the mind channeling and the map reading, so it only deplits the item charges when the bar is full and not while it is filling, it still fells a little underwhelming to only have 10 seconds of usage.

Your proposal is so convoluted and random I dont think it would ever be implemented.

I also think the key should do something on its own but I dont think opening the hatch is the right ideia.

how about ... survivors that hold the key are unable to trigger Hag's phantasms while walking/running.

Here's my idea: Remove/rename the broken key. Replace it with the Utility Key (or maybe come up with a better name), and, in the process, open up the option of what keys can do. Aura abilities remain unchanged (maybe swap the utility key and dull key's durations for those since the utility key is more useful now)

So you'd have:

1) Utility Key: This is a small key looking like it's designed mostly for mechanical purposes rather than opening doors. This key can NOT open the hatch. Instead, it can be completely expended to do assorted other effects, for instance:

• remove a Pig's trap from yourself or another person (maybe a bit too powerful now that Pig's been a little nerfed, but you are completely expending an item)
• instantly and soundlessly disable one Trapper trap (maybe something halfway between a sabotage and a disable, where it looks like it's still active, but will not trigger until the Trapper picks it up and sets it again.  
• trigger one openable door around the map. The garage in Gas Heaven, one of the doors in the Game, the locked area in the Temple of Purgation, the extra door on the swamp map, etc. Maybe you want to give yourself another exit from a room with one of the last 3 gens, distract the killer with sound, etc. To minimize coding difficulty (the need to put activation-places near every door) you could require this to be used on the generator that powers that effect rather than the door itself. This tactic also gives the devs room to grow and make other utility-key based doors or windows that do NOT have a generator attached.
• protect a single gen from regression effects (including Pop Goes the Weasel) for 60 seconds (making it useful if you've accidentally gotten yourself 3-genned).
• Some kind of EGC benefit, like maybe opening a powered exit door instantly, or giving you a time buffer before the entity consumes you.

2) Dull Key: This key can ONLY open the hatch (and do the normal aura reading stuff).  

3) Skeleton Key: This key, as the name implies, is magic and can open any lock, so duplicating the effects of the tiny key and dull key. As a bonus, perhaps, although it is completely expended on the Hatch, a use of the tiny key abilities simply consumes half of its charges (if they haven't been used for something else).