My mage tamer is similar to Merlins... but I don't use any +skill because I am too lazy to make a set..
120 Animal Taming
120 Animal Lore
120 Veterinary
120 Spellweaving
120 Magery
120 Evaluate Intelligence
I am human so I run wraith form for 8% HMD with 0 necro/ss to get my mana back

Just swap to jewelry/tali for necro to easily get in to wraith & then swap back to my reg gear. I run SW Mastery 3 because I can hardly ever get enough people together to actually get a l6 focus without the mastery, wish I could run taming mastery for Empowerment(if I have my prov mastery friend with me), Consume Damage is great for solo or when you don't have prov mastery songs.
For PvP, isn't 5x Frenzied Ostard still pretty OP cuz of the pack bonus? 99% control chance at 85 taming/lore on Frenzied ostards. Would allow you to build a little differently & I imagine that vetting is pretty worthless in pvp aside from rezzing the pets when they eventually die. Maybe something like this:
85 Animal Taming
85 Animal Lore
120 Spellweaving
120 Magery
120 Evaluate Intelligence
100 Poisoning
90 something... Parry or Med?
I just came up with that off the top of my head, maybe the good ol' pvp folks will come in with a better build, but it seems pretty versatile to me. Could just run poisoning mastery, SW mastery(not a good option unless you NEED the mana shields/l6 focus with 2 people), or magery mastery.
Just a thought, pack bonuses are ridiculous.