The Darkin and Aurelion Sol: Why Targon Needs an Aspect of Common Sense
These people cannot plan ahead to save their lives. Or anyone else's lives.
First off, we have the Darkin. Twilight of the Gods showed that the Darkin could be killed, albeit with great effort. Instead of killing all of the ludicrously powerful tyrants, the Aspect of Twilight decided to use a few to kill the rest. In the process, she made those few even more immortal than they already were instead of killing them once they'd outlasted their use. Then she condemned them to a nightmarish existence that would make them very strongly pro-revenge once someone inevitably found them.
You can talk about poetic justice and how the Darkin went from treating people like tools to becoming tools themselves, but that's cold comfort in the long run. Thanks to Targon's justice, we now have either 2 or 3 Darkin murdering to their hearts' content. Aatrox wants to destroy all of existence, Varus wants to destroy at least Runeterra, and Rhaast will kill pretty much anything you point him at.
These Darkin weren't saints before they were sealed in weapons, but now they're arguably worse. Maybe, just maybe, millennia of immobilization and solitary confinement isn't the best way to create a stable, peaceful individual. We can't put all the blame on the Aspect of Twilight, either. It's not like anyone else tried to stop her. These space clowns took a huge problem and turned it into a different huge problem instead of just killing their enemies. Now everyone else on Runeterra is paying for it.
And then there's Aurelion Sol. The bright sparks of Targon decided to enslave yet another absurdly powerful being, destroy his creations when he disobeys, and then not pay very, very close attention to their hold on him. Sol's story implies Targon's grip on him is weakening and he's got some pretty solid reasons for wanting revenge. Unless Sol is extremely careful with avoiding collateral damage, Targon has once again screwed over a huge portion of Runeterra because they can't be bothered to think about the consequences of their actions.
Thank goodness the Aspects oppose the Void or they'd have literally zero redeeming qualities.
: "I would burn the cosmos to catch Targon in the flame."