riot, please just have 4 keystones per tree.
riot plz add a keystone to each tree.
and be willing to literally remove keystones and replace them with new ones in order to make sure 1) each keystone covers a lot of champions fairly 2) each champion has at least 1 keystone they like to use - a lot of champions use keystones that don't really make sense to their kit/theme because it's the best of bad options for them right now.
there is nothing right now that champs in the jungle or top lane (especially melee) who want attack speed from precision tree, for example. there's also a lot of individual champs in a class who just don't use the keystones targeted at their class as well.