I've been playing an Amazon, following the Storm skilltree. I play off and on, an hour a week or less, and I play the game single-player. I'm not interested in multiplayer, online, leagues, or whatever. So I'm quite annoyed that, from what I can tell, the newest league - that the launcher made me update to before I could play the game - has completely destroyed my character. My favorite skill from the Storm tree, which I had bound to the left-click, no longer exists. I cannot rebind the left-click to any action anymore, the only way I can use the left-click is by swapping equipment sets. All the skill points I had invested in the removed skill(s) are gone, so even if I were interested in the retooled skilltree, I can't redistribute the points to try it out, because I don't have them.
What I'd like to know is, can I revert my game and character to the previous version, and can I play the game completely offline so this kind of crap doesn't happen again?