Yeah, Necromage isn't very good for any pet except for basically Dread Spiders. Poison Breath is a complete waste on Bane Dragons, since they innately have Poison Skin which inflicts DP (when fed Blackrock Stew in past 24 hours) on opponents that hit them in melee. Putting Poisoning, Poison Breath, or Venomous Bite on a Bane Dragon is completely redundant. I facepalm every time i see someone do it.