Movement speed from items building from Aether Wisp should be unique.

Stacking it up is getting to be a bit silly.

A champion with Twin Shadows, Runic Echoes, and Boots is faster in combat that mobi's are out of combat.

If you buy one of each, you can run at around 500 movement speed. The only downside to that is that you need to buy Ardent, but next patch Shurelya's is coming back, and it has the same passive movement speed Do we really want to see a be that fast?