How to restrict the use of item groups not specified by itemtype

Hi I'm trying to restrict a new kit from using all items flagged as magical. Does anyone have a creative idea how that could be achieved without having to implement a vast list that covers all magical items in the game via opcode 180? I initially tried to use opcode 181but there is no itemtype i believe that fits my requirements. Maybe opcode 319 could somehow be used for this but I have no idea how. My hunch is this is a dead end but I wanted to ask before writing it off entirely.