The first few minutes determine if you can do it or not. I had a necro mage tamer awhile back on my main shard that used to solo lady mel and that was rough but fun. It's on a shard I dont play often and I didn't see the need for 120s, but it gets the job done. My current necro tamer is along the lines of 110tame/110lore/115mage/115eval/100necro/110ss/60med It's not the best I ever ran but it works well enough for me. gm spiritspeak is 20% mana drain and 120 ss is 24%(i think.lol) mana drain in wraith. To run necro without spiritspeak is sorta pointless unless you are just going for wraith form, in which case you need slayer books.and that may not work that well. No resist isn't a huge deal, but things like paralyze(trap box to counter) poisons, mana drains and mana vampires will effect you and get annoying fast. You can also hop on a Cu and run away to a safe location to heal it up in the event it's getting smoked. Cu's heal themselves which is nice but have half the hit points of a good greater. The greater dragon or a cu sidhe is the only real options because if the pet dies or get in trouble you need something that can take a beating. Wraith form helps to offset the low meditation so you can pull mana back and you use a greater dragon to tank. It can work and I still use a necro tamer mage for pvm and pvp (more pvm these days). Low if any meditation, no vet and no resist spells. A necro mage tamer is a strong template but has 3 major flaws.

Ultima online tamer build