User blog comment:CrashySmashy/Sarah, The Evocator v. 2.0/@comment-10958553-20130719204745/@comment-4431813-20130719213659

Their health is either lower or greater than your champion at early levels by ~25%. That's like 100-200 hp- not that much. And don't forget they do not share your resistances, so they are usually more fragile than you. They needed that umph boost form ap to stay in lane. You cannot affort do get summon after a summon - they cost quite a lot, and your mp/5 regen is bad.

And @ Ulti: I don't think mashing an ulti icon and 3 skills under it would make it more clear; after all, you press Q W and E after ulting, so why would those enhanced abilities be linked to R?