Necromancers can tame any humanoid or bug npc by killing them first and use their reanimate ability that resurrects and tame their new minions.
Also, after the minion has been resurrected,they will now have a blue shadowy mist look with glowing eyes just like Betsy in Drustvar or the possessed goats
in Hallowfall.
Necromancers can visit previous expansion zones and ressurect
humans,elves,orcs,trolls,gronlings,gnolls,Vrykul,hosen,bugs,Humanoid or Bug type dungeon bosses…
Along with their three skeleton minions ( equivalent to demo warlock imps) necromancers can have three resurrected minions patrolling with them as well…most of their other abilities will be summoning additional Nerubians ( equivalent to demo warlock addition demons)
Also Necromancers will have a Deathgate (Location: Maldraxxus) to visit their “butcher block” to stable their reanimated tamed minions…