Op was mentioning a totemancer uber skill. Jinn covers the spellcasting builds, Rathma’s chosen covers the wdm ones. Veil King seems to be a niche pick, since summoner gets benefits from the two others, depending on skills used as main damage source.
Everything is covered, but nothing is specialized for one type of build, at least on the necromancer. What I would call specialized would be Baneblade on sorceress, benefits only melee. Some of them yes, most not really.