PSA about AP Janna

Building Ardent Censer, Lich Bane, and Luden's Echo grants Janna a total of 25% movement speed from the items, her Passive grants her 8% movement speed, and her W passive (at rank 5) grants her an extra 14.8% movement speed (including the AP from those items), for a total of 47.8% permanent movement speed bonus. With the OOC movement speed mastery and mobility boots, her total movement speed is 558. In combat with her W still off cooldown, it becomes 485.

(All of this assumes no AP is garnered from anywhere else)