These vague descriptions were an issue pre update and unfortunately, they haven't addressed it with a tooltip or anything. Are we to assume the blade skills under reflex affect the Mantis Blade? It's rather confusing since it has "Blade" in the name and for some of the skills in the tree like Finisher: Bladerunner they actually have a Mantis Blade in the skill demonstration. That would lead me to believe that some blade skills apply but there is no way to determine which ones do and which ones don't.