Necromancer Questions

I have a few general questions, revolving around the Necromancer. First off, his summon spell, summon bone whatever, any of them, anyways...Do the things he summons have a limit in time that they stay for? Or do they stay until I log out? Also, when aquiering new skills from skill trainers, is there A: a certain level you must be, and B: can you aquire as many as you want? Thanks to the person who answears these, and when the game launch comes out, I will be sure to summon something from your dead corpse XD J/k, but seriously, thanks to whoever answears
Frozen

The Summon Spell summons a minion with something like a Health Countdown Timer. When you summon the minion, his health starts to generate at, oh, say 2 pips. So you summon your little friend and then about a minute later it drops death because it's run out of health. If you have some sort of heal ally/heal area spell, you can keep them around longer.

I don't think that you need to be a certain level to learn a skill. You can't just get unlimited skills, though, skills that you purchase from the trainer cost one skill point and an amount of gold (20-50 gold in Post-Searing Ascalon).

Animated Bone Minions, Fiends, and Horrors all degenerate life over time. They do not carry from mission to mission or explorable area to explorable area. As long as you can keep the minions healed and alive (or your team can) then it/they will last until you change areas.

You can get as many skills as you want as long as you have A. a skill point per skill you want to get, and B. enough gold to purchase the skill.

"They do not carry from mission to mission or explorable area to explorable area."

Wow. Does that mean that if you go from, say, Lakeside County to Regent Valley the minion won't follow? I never kept them alive long enough to find out.

Necromancer minions lose health constantly from the time they're summoned until they die. This effectively limits the time they stay around for, though I think you may be able to cast healing spells on them to keep them going a bit longer.

So, how many skill points do you get per level? One? Meh, that just changes it, I dont think im gonna be using death magic then, becasue its not as good as I thought...Hmmm, thanks guys

Double post content:

Well, one more thing I guess...a few more...How many skill points do I get per level, and do I have to pick a second class? What are the advantages to not picking if you dont have to...someone mind explainging the level up system, and how you get skill points. Also! What are the points you use to put into like, soul preaping and death magic? Do you put it to death magic, or do you put it into things inside of that section? Like summon bone feind er whatever?