User blog comment:Derpinator Power/Rarely Played Champions/@comment-5663427-20140805222844/@comment-25251071-20140806035134

If Rengar's bonetooth necklace was turned into a trinket, it is definitely unfair for Viktor to be the only champion with a unique item mandatorily occupying a slot. However, the problem lies in how to be able to determine his hex core upgrade if it's turned into a trinket. That is the dilemma that Riot is facing if they really plan on changing it into a hex core.