Who takes stormraider's over thunderlord's?
It just seems like if you're the type of champ who can deal that much damage that quickly you would just want more burst instead of trying to stick to the enemy. It seems like a purely 'win more' mastery when you get to the point that killing a champion is trivial and you just want to style on enemies.

works well with it. when you ult in the speed helps you a lot more than a bit of extra burst.