Hello mage community,

I thought about adding this to my other post, but I didn't want it to be too long and convoluted and thus, miss the point.

My original desire for my mage was a class that could solo rifts at 50. I got great info regarding necros and elementalists. I saw a lot of good build suggestions (they made sense to me, at least) for killing elites at 50. However, I'm finding that using a necro/warlock/dom build http://rift.zam.com/en/stc.html?t=0zvws.Mc.xxckzz I'm killing really slowly (compared to my assassin.)

Is this build the most viable for questing?

Is there another set of souls that tears up questmobs and thus levels faster?