Mana Drain - doesn't work on mobs so only useful for PvP/jobbing - I don't have it and don't plan on getting it until I'm fully farmed 80, maybe. I don't PvP much and when jobbing, often not time to cast the skill.
1st earth and lightning nukes - useless imo, earth requires you be too close to mobs & lightning is really weak - I don't have either, you can survive on 1st fire & ice nukes until can get the better earth nuke.
I've got Charged Wind at lvl 1 only (KB can save your life

) and Teleport. If you are soloing, the fear lightning skill is useful against giants - had it on my character on Hercules and loved it. I party 99% of time now so I don't have Fear on this character.
For the Discord Wave discussion, I've used it on cleric or wiz in my party when they're being chased by mobs. If it works, the mob will just stop. Get lots of thanks for that. BTW, you can use Temptation in the same way. Mob will just stop chasing, and if another mob is nearby, can start attacking it.
Just don't use Discord Wave on the warriors! I was in a party with a noob bard that kept using it on the warriors.

Took us a while to figure out why the mobs would suddenly aggro on the wizards. Party chat was not very polite on that topic.
