I don't get what you mean about being lazy. Unless you're hardcore grinding mob xp to save on books, it's the only way to get characters up, whether you get them from events/teapot/whatever or xp leylines. You're only hoarding them because you're not using them, unless you legit farmed xp leylines instead of using your stock, which means you didn't hoard, you just kept even.
Out of curiosity, the other characters you have, what level are they?