CycloneSP
Steampunker
Hey, don't forget the Nebula Blaze now. It's awesome.
Also, don't forget the Celestial Magnet. Damage boost plus extended mana star pickup range means, barring a case of bad luck, running out of mana in an event where enemies swarm you is a thing of the past.
eh, don't really need the dmg buff, and the mana star pick up range buff is on the cuffs already.
I like Blaze, but since it's only single target, it doesn't keep up with the amount of enemies that spawn, and the mana cost is much higher than razorblade. (considering razorblade fires 2 for one cost, and can hit multiple targets)