User blog comment:Nearthel/Bellomarus, the Destroyer of Worlds (Background for my next custom champion)/@comment-1330314-20160422114451/@comment-1330314-20160422221929


 * The Targonians captured Aurelion Sol by deceiving him into thinking they had good intentions towards him and abusing his trust. By contrast, there's nothing to this "weird energy" that's really trying to deceive him or abuse his gullibility, and him not caring about that would be the same as a painter not caring that someone swapped out all of their materials for different, weirder ones. Aurelion Sol's arrogant, but not careless, and has both the insight and the knowledge to determine what the cosmic force was in the first place.
 * If he doesn't really care, why would he even feel guilt towards creating Bellomarus? He has no real reason to be fighting him at all right now, and since your character is currently purely based around his rivalry with Aurelion Sol, you're going to need a stronger foundation for Bellomarus's motivations.
 * Aurelion Sol knows enough about the Void to know whether or not he's using Void energy to craft his stars (and this is assuming that's even possible, since the Void consumes all light). Again, this is not the strongest justification for Bellomarus's creation or identity.

The issue right now isn't that Bellomarus feels incomplete (you'll have plenty of time and space to flesh him out), but that there are core parts of his lore that feel either weak or not fully adapted to the established canon. It's out of character for Aurelion Sol to not pay the utmost care and attention towards his creations, even once, and he wouldn't naturally want to fight an entity who didn't threaten his stars, either. Again, try putting Bellomarus in a wider setting: he doesn't really need an origin story, particularly since he's a cosmic entity, and if he just happened to be a world-destroying entity as old as time, that could be enough to get him to clash with a ton of different characters, even if it's not Aurelion Sol. There are tons more reasons for Bellomarus to target Runeterra besides trying to free Aurelion, particularly since he's doing that on his own already, and finding that motivation could help you flesh out your character without basing yourself completely on another champion.