the fun killer trio

Description: their actully brothers,believe it or not!they each had a portion of an AU,but when those AU's collided,they each went on a genocide,then met up,killed some more people,and then became a trio,became nearly immortal,and left their worlds together,with everyone except the ones too strong,human or monsters,but now their loose in the multiverse,killing anyone they can,and they dont stop for anyone.also,nobody knows their real names.