Really? What glyph so you suggest swapping out for Blitz glyph?
Cs. First off it needs to stack. So the glyph is only really effective if you play vs a target your gonna train long enough for the glyph to be effective. Secondly. Its only a minimal dmg through dmg.
The good thing about the glyph is that is scales with the ammount of people that will hit the same target. So the cs glyph is highly suitable for kfc or melee cleaves.
But if you play with a caster it is much better to try blitz tbh. It also stuns people behind pillars if you charge their partner next to it. And it only becomes better then you play rbg or 5s.