LMP/GMP - How do they work?

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Timelord_Gallifrey написал:

Well obviously they do with the less and increased damage factored in, I know they are off by a bit, bu that wasn't the question BRavich.

The question is, does the tooltip dps on skills multiply by each projectile or divide by it. And which skills does that actually work for in regard to being able to hit a target all at the same time with each projectile, ASSUMING, all projectiles could actually hit the same target at the same time.