Curate, connect, and discover
Viktor and Jayce don't die when they save the world together, which is a surprise for both of them. What is even more of a surprise is when they suddenly find themselves in the bodies of their alternate-universe selves. The problem is that they were mid-battle when this happened.
The Crown Prince of Piltover had taken a band of warriors with him to defeat the rumored dark mage whose castle sat not far from their border. Things had been going well up until a blast of magic left everyone, but especially the Mage and the Prince, disorientated. Viktor figures out what is going on before Jayce does and uses that to "capture" the Crown Prince in his magic. They both have blurry memories of the bodies they inhabit, so he knows that if he doesn't end things quickly, Jayce will be expected to fight him, and after everything that had just happened, Viktor had a feeling that Jayce would shoot himself before having to hurt Viktor again.
The Piltovians watch in horror as the mage snaps a collar of magic around the prince's neck and holds him hostage, demanding that they leave without him. Caitlyn would rather do anything else, but as the mage orders the prince around, orders him to stand and kneel and stop breathing and start breathing again, she knows they need to retreat and regroup. None of them had ever seen a magic spell that could control someone like that, and they needed to be smart, or the mage would kill the prince.
Of course, Jayce is really just doing what Viktor says because it's Viktor, which is what Viktor was counting on.
Caitlyn hadn't been expecting too much from the battle they had gone into. Maybe something crazy would happen when fighting the Dark Mage, or maybe it would be just as easy and simple as every other battle she had shared with Jayce. Up until a blinding flash of light and a snare of magic left the Crown Prince of Piltover in the Dark Mage's hands, seemingly unable to disobey him.