Fire Magic: Searing Beam. Elite maintained spell. Fire a searing beam at target foe. As long as you maintain this spell and target foe is within range, cause burning on target foe and deal 3...18 fire damage per second.
Earth Magic: Sand Storm. Elite maintained spell. Create a sand storm at target foe's location. As long as you maintain this spell, foes in the area are blinded and take 6...27 earth damage each second.
Air Magic: Lightning Cloud. Elite maintained spell. Create a lightning cloud at target foe's location. As long as you maintain this spell, foes in the area are struck for 10...47 lightning damage each second. This spell has 25% armor penetration.
Water Magic: Blizzard. Elite maintained spell. Create a blizzard at target foe's location. As long as you maintain this spell, foes in the area move 15...75% slower and take 7...25 cold damage each second.
I think these types of skills would be interesting to add into the game. I don't believe they should cause exhaustion, because that would be too heavy a price to pay for them, and I'm not sure how much energy they should initially cost to cast. They'd also look really cool.

Thoughts? Comments?