Sparks, or crit?

it depends on how sparks works. i'm petty sure you cast it, and while your Lightning Sprite is out, it'll use Sparks attack in the time period both are cast. that's what i think, i'm not entirely sure how the skill works either. but i would go crit, myself. >.< although, i'm probably never gonna make a striker anyways...maybe a brawler at one point >.>