Full: All hostile animated undead in the area become bound to you. Verata's Aura ends after 120...264...300 seconds. When Verata's Aura ends, you lose your bond with any undead bound to you. (50% failure chance with Death Magic 4 or less.)
Concise: (120...264...300 seconds.) Become master of all hostile undead servants in the area. End effect: your undead servants become masterless. 50% failure chance unless Death Magic 5 or more.
Even if this enchantment is renewed, minions will still become hostile every time this enchantment would have ended, that is, 120...264 seconds after it was cast.
Enchantment spells used on minions before they are stolen, still affect the party opposed at time of casting. (ie: Death Nova will poison you upon minions death, if the minion was enchanted before this skill was used.)
If you capture more minions than you can have, all above limit will die.