Battle mage guide

Adv. Blue Aura only passively gives elemental and status resistance... nothing else. It's still better than the alternatives though: Drain will be capped on damage without being maxed and Reaper really isn't all that great. For ANGEL, I maxed Adv. Blue early 100s or so. When you do it is up to you, but there are a handful of things to work on first.

I’m now 115 and still have 0 SP on Adv. Blue. I thought it was a 4th job skill mistakenly. If I ever put more SP on Drain is purely because I want to cast it less.

More survivability is a hell of a lot more important than whatever else you would put the points into.
Also, blue aura can stack with other auras on your 5 other party members/entire boss squad.

Survivability is important but Battle Mages are pretty hard to die with ok HP and Drain. Less skills casts = more dmg (for ppl who cares about dmg).
I suspect Boss party will ask for Yellow/Dark Aura more than Blue unless party members super weak.

I find blue aura to be pretty useful. You'd definately notice the shave off in damage when it's on. If you're able to kill things just as fast with it, you'd be saving some pots on the way when you're accidently bumping into things.

Activate blue aura with blood drain = not much use for HP pots, or on the other hand you can use dark/yellow aura with conversion for survivability. Things like these just make battlemages more versatile in a sense and gives you more options when it comes to training. Conversion is good yet costly on MP pots. If funding and potting is no problem, then you can do whatever fits your style.

Pots are never my concern. I just don’t see Adv. Blue’s usefulness for players who don’t go high lvl bossing (often) and don’t plan to go higher than lvl 160.