Riot what are you doing with the assassin item changes?

Usually you guys are about nerfing something 1 by 1 but it looks like you guys are confidence in your decision so care to explain to us about these changes? not only are you nerfing the damage you are removing the out of combat movement speed to all of them, I would be ok if it was removed on youmuu since it has an active to give speed, but what I don't get is this:

https://i.gyazo.com/2d002263ab8b3f665060b70b4e44c66e.png "Assassins are best when they have to find the right moment to all-in their opponents. The ability to whittle their opponents down simply isn’t a major class strength for them. In other words, Most assassins want better roaming and better burst out of their items, not better lane harass. So, we’re giving it to them."

so why would you remove a utility that makes an assassin...assassins they move around a lot and roam and go around flank as fast as possible. I think these nerf happened because of the new champions seems like those movement speed would make him no clip all around the map, but that's just a guess.

so what are you doing here? are assassin NOT suppose to be roamers and do less damage? if you're going through this MS change you should buff mobility boots, but then other champs would abuse that wouldn't they? so yeah what are your plans here?

IMO please leave dusk blade don't touch.

edit:oh and you increased their price nice.