They're mostly fairly lackluster, though source points aren't quite as rare as I expected, with each purging wand granting 10 possible source points. There obviously will be way more source skills, so I'm not too worried yet, but existing skills could use some work.

Infect seems like one of the worst source skills, though maybe I just need to give it a chance.

Steam Lance is a great concept, but I wish it could did something like damage enemies and heal allies, given how hard it must be to line up all 3 allies. It basically seems like a harder to use healing ritual that heals about the same only over 3 turns.

Overpower is confusing. Does it work if your max armor is higher than the enemy's max armor, or use current armor values? I assume the latter, but haven't tested. My warrior doesn't seem like he has much physical armor, so it hasn't seemed particularly useful to me, but maybe when better geared it'd be better.

Electric Fence doesn't seem very good on paper and hard to use. Or at best, Chain Lightning is better. Maybe if the air immunity was two turns it'd be a nice aggressive attack that wouldn't be extremely dangerous after the first turn.

Dunno about Arrow Spray.

Acid Spores, Chain Lightning, Mortal Blow, and Infectious Flame and Epidemic of Fire all seem really good from my impression.