I changed the name to properly address what I was getting at. I wanted to learn how to make a build well and get people's advice on it. I know how to play her, and it is very helpful to get full stacks on mejais. Also, I'm building her as an AP champion, and Doran's Blade doesn't help with that. The mobility and the health pots early on are really all you need to survive.

You can't learn a champion with stackable item like mejais. And maybe better starting donran's blade then.