Does it seem like KBoyz have a high number of centrepiece types to anyone else? Mounted types.
Breaka-boss, Raker-rider, TBA fly-guy gives 3 mounted big monster things. Howdah guess also feels like a centrepiece contender, maybe just due to how "striking" it is.
Gnashtooth is no small mini and is also a mounted hero you'd consider a centrepiece in other armies.
Meanwhile they've got what, one troop type unit only so far, the Gutrippaz. Nothing else is battleline on warscroll builder.