User blog comment:BCtheBoss/Sorry for My Absence/@comment-35357669-20160330034231/@comment-24184651-20160330052541

Quick tip:

"In which" is saying "in something." Skylanders is a game in which you battle villains.

"Which" is just referring to something. Wikia is one thing which does little to contribute to my future.

Hard to explain, but it's just a pet peeve of mine.