So basically the wikia has now reached a level of minimal usefulness. Every page that needs to more or less exists(though there's still a lot of red links). It's mostly just me at this point. So if someone is interested in helping that hasn't yet and needs to be pointed what to do, just ask me.
Here's a quick overview of the visual editor: community.wikia.com/wiki/Help:VisualEditor
I recommend using the VIsual Editor for most edits, and the Source Editor for copying and pasting stuff you want from other pages(like tables). The Source editor can also be used for removing categories.
Talking about what needs to be done and a checklist is over on this forum page: summonerslegion.wikia.com/wiki/Thread:2688