It should convey the following when it’s presented.
The Creation Catalyst is a system used for getting tier bonuses, reforging stats and getting transmog sets.
A) Get tier set bonuses by converting main pieces: helm, chest, shoulders gloves or pants.
B) Reforge stats by converting offpieces: boots, belt, back, bracers.
C) Obtain transmog afferent to the item level of what piece you convert using the catalyst.