[s2 act 3 spoilers] Alright I'm going to need some lore/explanation drops people!

SPOILERS

So I'm hoping to have some questions answered regarding some information that was released on S2 Act 3!

In no particular order:

1. How did Ambessa die? She got caught in the trap, LB played with her mind for a bit and then Mel rescued her, how did she die so quickly?
2. Can someone explain what Viktor did about going back in time many times and giving Jayce a gem with a different rune everytime? What was it for? Why did it have to happen multiple times? Did he travel through different dimensions to do so?
3. What happened to Jayce and Viktor? They were holding onto that gem but I have no idea what they were doing, what it was for, and why the gem was so special for the anomaly, where did they go? Are they dead?
4. Why did Sky said that Viktor wasn't going to miss their chats?
5. If the theory that Jinx is alive is correct, does Vi know about it or does she genuinely think Jinx died?
6. Was LB actually defeated by Mel? Or did Mel do that to defeat her mother?
7. Is Heimerdinger dead? I know about the whole banndle citty thing, but he was erased from existence by a time anomaly whilst in a different dimension from his own, woul he actually go back to his correct timeline despite all that?
8. Why was Warwick the only Viktor golem to remain alive and concious even though every other golem deactivated and died?
9. In Viktor's destroyed dimension, is that actually a good ending or a bad ending? He apparently solved all the problems in the world so did he do something good or bad in that timeline?
10. Why was Ekko throwing the time anomaly at Viktor, the thing that defeats him?

Thank you for any explanations you can provide for my questions! :)