What can be placed to this slot? Tried almost all i have, no effect.
Google gives no answers.
Maybe someone knows where to search info or even exact info 
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dude have you already figure this out? im also confuse about this
Still no…
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I don’t know either, so bumping this thread. Hopefully someone will know.
Same question here. Tried every crap on inventory without success. Well, gonna track this topic 