I don't understand why Vladimir has his W.
It just doesn't fit in well with his kit. Vladimir's kit allows him to lifesteal a lot with his abilities, which makes it weird that he can just negate all damage done to him when in his pool. Of all the champions that need a move for safety, Vlad probably needs one the least. He has no real desire to use it to waveclear and it has no cost, so you can't really wait for it to be down before going in. His W just makes it impossible to ever trade in lane, laning against a Vlad is just an inconvenient farming simulator. I think that Vlad would be much healthier and easier to balance, not to mention more interesting, if he was given an entirely different W to make him not as incredibly safe.
trash early game.