I think that trinity force and ibg need greater distinction from each other
Right now those items are in a state of if the champ would build one then they can probably build the other. They are both sheen items built by champs that build little to no damage and since unlike lich bane there in no other stat scaling there is little loss for either option chosen. I think there should be a more solid distinction of one magic sheen item, one tanky sheen item, and one AD sheen item.
just having it
so not only do you get +5% ms that scales with boots and the phage passive, you still get the phage passive
iceborn does not provide any movment speed boost