Vayne rework ideas

Ok, so I have some ideas about Vayne, just like everyone else. A lot of players are a bit annoyed that she's one of those "league of mobility" champs, and that she can tumble all of the things all of the time, at least at later levels, and that Silver Bolts is sort of "lolol, right click". So here are some thoughts. To a large extent, my thinking is to genuinely design her as an assassin who is rewarded for surgical strikes rather than right-click-4-tru-damagez and tumble-4-dayz gg. In other words, making the kit match her tags. Also, the idea is to play with skill interactions and cooldowns while keeping the same set of skills.

Tumble - Cooldown remains high at higher ranks. Final Hour refreshes Tumble and temporarily lowers the cooldown to its current rank 5 value. Silver Bolts - Stacks up to three times with a higher maximum %health damage, but must be triggered by Tumble or Condemn. (See? Now you have to decide whether Tumble is about "lolol untargetable" or tons of damage; you can't have it both ways once you've made a choice.) Condemn - Sort of fine as is, now that you can't Tumble for days anymore. Final Hour - Invisibility may or may not be necessary with these changes and some number tweaks. (See also Tumble change above.)

Keep in mind that the introduction of some counterplay and tougher decisions warrants some number buffs here and there.

For Silver Bolts, the Tumble-activation system leaves some room for fiddling. For example, the stacks could do damage over time if not popped, but for reduced damage. Say, 1% total per stack at rank 5, with a full duration refresh for each auto. (This is still a lot less damage per auto for multiples of three than currently on Live.) The only thing I'm not sure of is what a Tumble active should do per stack - 4% or 5% probably?

Edit: - Condemn added as an allowed mechanism for triggering Silver Bolts. It would actually feel pretty satisfying.