Not staff, but one of my biggest issues with Type 5 is that it often contradicts itself.
How exactly can a Type 5 even fight? As even the notion of even "landing an attack" or "causing damage" would not even apply to their own being.
Type 5 implies they are completely independent of cause and effect, so how exactly can a Type 5 interact with another being? As doing so, means they are still participating in a causality system.
It would go both ways; they cannot be interacted with, and they cannot interact with others, as doing so is an "effect".
Hell, things such as moving, breathing, and even speaking implies there is a system for them to do so in the first place. Type 5s "fighting" makes absolutely no sense, as it shows that they can effect each other, although Type 5 doesn't even participate in causality at all; which said "being affected" shows that they DO participate in it.