I agree with scrapping the Revive, it's a pretty dumb mechanic, you could think of it as extra health that only pops once you hit 1 HP, except stasis's you for the duration, leaving you an easy target. 9/10 times of fights you win, it won't pop, the rest of the time it pops, you die anyway.
I'd also suggest: Make the Blood Well buff last a set amount of time (but longer than the current four seconds), and not refresh on dealing damage to enemy champions. The way it is, it is very hard to fight him when it's not up, because you need to go in, wait and entire 4 seconds for it to tick down completely, and then go back in before he gets it stacked up again with his W. If you go in just a fraction early, that's another 4 seconds for you to deal with, and this time I'm betting you can't get it. Making it a more conscious decision to activate his Blood Well (instead of sitting at 3 stacks until someone goes in on you), as well as making it last for a set time which isn't extended by being in combat, would nerf it enough that it could get some big number buffs and be a window of power that is very clear to play around.