Incubi, wyches and bloodbrides are all "hammer units," just not deathstars, like the aforementioned
LRC+
TH/
SS termies, seer councils or nob bikes. The only "death stars" I can forsee are Uber beasts units and possibly the Court of the Archon, although I haven't really looked at them, not having models and all. Fortunately, I think that Beasts will be used in moderation, and if not, would be easily avoidable (unless the enemy falls into the classic "hammer vs hammer" trap, nicely playing into the
DE's hands, and the
TH/
SS or seer council or what have you deserves the rightious beatdown it gets as a result). Unlike Seer Councils, nob bikes or Termies, there is nothing preventing them from simply splitting into smaller units for maximized effectiveness. Same hurt, equal price. Just less pain tokens.