Challenges

Lately I've been running the vaults of the artificers challenges, partly for favor and partly to get used to them and running them at 'epic' levels. I figure I'll want to TR my wizard soon, but I've never done a raid, and I don't even know if epic quests are soloable (like P Carnival), so the challenges are probably the easiest way for me to get epic tokens.

But until I get minimum level 20 stuff, I don't see the a good reason to go from level 18 to level 20. The wizard capstone is nice, but isn't necessary at this point for challenge resource gathering.