HideousGrain
In chapter 179 Jason described the black, gold, and silver colors he could see in the rift as the purest form of affinities I'm also pretty sure that in a subsequent chapter he says he thinks the silver color has to do with time? or maybe that was an idea I came up with after reading but yeah I think it's a monarch level beast with a time affinity though it will probably take forever for that to be revealed.