Quote Originally Posted by Toned View Post
Spells scale with level so if you aren't upgrading your gear as you level your mana last less and less
This is a good point and a mistake I keep making.

I keep thinking like I'm in Wrath and spells aren't a % of my mana pool. I still like INT for the rest of what it does, but big mana pools aren't that meaningful anymore. Maybe they were a % and just smaller in Wrath?

Either way I mostly ignored spell costs before Cata.