Board Thread:Jobs Board/@comment-49.146.192.48-20131231074513/@comment-6697950-20140225160151

That's where you are wrong. Outside System Skills are called "outside system" skills, because they're not really system-based skills. They're more like natural skills and logic that can be applied within the game. For example, targetting at a weak point of a weapon because, logically, it would deal more damage. Or, getting rid of unneeded input signals to focus on specific sounds, images etc.. In the latter case, the system practically doesn't have any effect on it, as the skill depends on your brain prioritising information. The former case can (and usually does) also apply to a system-based skill, like Sword Skills, but that doesn't mean that it's a skill regulated by the system.

As for the immortal object thing, I don't recall many, if any at all, instances where swords actually get stabbed into the ground in the novel. The anime is known for excercising its creative license, so I won't count that.