User blog comment:Glop48/Champion Concept : Bone Fiend,The Death Prophet (work in progress)/@comment-4593717-20130213164720/@comment-6443052-20130213174523

Remeber that when a champs movespeed increases, it isn't exactly what is stated in the percentage. It is decreased, based on the champs movespeed. The larger the movespeed, the less effect movespeed buffs give. This would probably increase her speed to roughly 550, not 600, and while this is strong, it won't help as much in an early fight, compared to a Janna shield, which gives an AD bonus. The actual flat sheild, as well, blocks less than a level 1 Janna sheild. It also scales horribly into the late game. It essentially a movespeed steriod, nothing more.