‘Pain Barrier: Movement Speed’ is still listed as a Doppelsoeldner attribute even though the skill is now gained at the Swordsman class. Whether this will change, we’ll see, but it is good to keep in mind when theorycrafting.
EDIT: The max level and skill relationship have been removed in TOSBase, so who knows if the attribute is even still in the game. I hope it is. Getting attributes for previous skills in different classes would be a pretty neat idea.