As far as I can tell, leveling up Ember Bolt only adds a couple dozen poison damage points (if even that much?). The knockback level and weapon-based damage stay the same throughout all levels. (You also get a couple of bolts added along the way to level ten, IIRC.)
Is Ember Bolt only really good for one point, and only towards the beginning of the game? Or am I missing or misunderstanding something about it?
I've seen comments on guides to the effect that Ember Bolt is a pretty nice skill, that it "scales nicely" as you level up, and so on. Right now, I'm not seeing how this can be.

