Do you think Kha'Zix's character is any less compelling by virtue of his goal being unachievable within the League of Legends universe?
To clarify a bit: Kha'Zix wants to hunt down and eat Rengar. He's very cool. BUT, since they are both Champions, this is a literal impossibility. Even if it could happen off in the Plague Jungles somewhere, it could never happen, because they both need to remain characters in the video game. Essentially, the conflict between Kha'Zix and Rengar could reach an eventual end if the Lore wasn't tied to a video game such as this. But, since they both need to remain usable in the game, it can't.
Do you think this detracts from his appeal as a character?
I could ask the same of a few Champions. Rengar himself hunts Kha'Zix. Vayne wants to purge the League of evil magicians, but she faces the same impossibility, in that the characters in the game must remain open for use.
Do you think this futility negatively impacts any of these Champions? If so, what do you think could be done to mitigate it? If not, why not?