apart from the fact that it doesn't. It picks up the ashes and puts them into the urn, where they can't be taken out. Once the urn is completely full(it tells you when it is quarter, half and three quarters full) you can bank it or teleport it away, after which you get the full xp. You can bank 10 full urns at a time. Except based on the question of whether you have to pick them up or if its like bonecrusher it does. Its per ash. When you teleport the urn away you get a few K prayer xp.