Achtung! Cthulhu datafile

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Originally Posted by zarlor

EDIT: Well, I suppose there is also a 3rd way, which is to simply create the item with a description about what it does and leave it to the player to deal with handling it.

Option 4 is to create them as free Edges instead as Mythos powers use a roll Vs Knowledge(Mythos) rather than the usual casting process. Rather than using power points, they have a modifier on the skill roll