Vayne tumbles, maneuvering to carefully place her next shot. She rolls toward the cursor and her next attack deals 75 / 85 / 95 / 105 / 115% (+50% of ability power) bonus physical damage. This bonus damage is not increased if the attack critically strikes.
Does this let one jump over walls?
No, tumble does not go through walls but it allows you to reset your auto attack if you tumble into a wall.
this with sheen would be epic right?