What do we do about Brand?

Here's a champ nobody talks about (if I'm wrong, please link me to a recent discussion). I absolutely love his kit, but he is often seen as the definition of an immobile mid lane mage. The discussion as a whole hasn't been touched on, and I'd love to see Swain, Malzahar, Vel'koz, and whoever else I'm forgetting to get some love, but Brand is my focus for right now, and he needs some help, or at the very least some attention. Now, I'm a noob. I don't know every element that goes into balancing, or exactly how to fix these mages. But with Brand's kit, I have a few ideas.

1. I like Luden's Echo, but I feel like sacrificing AP for a movespeed boost might help. My idea: a movespeed boost at 100 stacks that goes away when the stacks are expended. Some nerfs for Cass and Kennen might be in order, but this seems to be a really good solution for all immobile mid lane mages. Maybe the bonus damage could be given a boost, too.

2. Brand's E stands out in his kit, as it's basically useless other than an easy way to activate his passive. It's range is too low to be useful, so here's my solution: BORK Active. Activate his passive and steal movespeed. I legit want to hear criticisms for this idea, because I'm not 100% sure how much it would help his mobility. It would also help his support game, as adding a slow to his kit would help his cc

3. A ward, item active, or something that you can place in the lane. Staying within an AOE of the item for a long enough time will give the champion a speed boost that decays as you leave it. This would really help champions that stay in lane a while, and also help their roaming a bit.

I'd love to hear what you guys think.