Hercules knew that Livia would probably only fight with them for as long as Lucifer remained a threat. After all, he was no doubt an obstacle to her and Ares' plans to rule the world. But still, Hercules would be cautious when it came to Livia. His brother's warlords, the ones Ares took actual interest in, could be dangerous. Xena had been one of the most dangerous yet. Livia might just be at that same level. Maybe even above it if it really came down to it.
"If my brother is pulled to this world, yes. I will hold to that logic and I think he'll see the benefit of it as well. At least for the duration Lucifer remains a threat to any plans he has." Hearing that she was willing to spar with him, he decided to ignore what she claimed Ares had made her into. He frowned though at the mention of Caesar.
"You're not talking about Julius Caesar, are you?" He doubted it, but wanted to make sure. "And no, this probably isn't the best place for a fight like we'll no doubt have. We'll need to find somewhere more suitable. Agreed?" Seeing the smirk on her face, he had a flash of memory at blond hair, brown eyes, and a lithe body dressed in black leather armor. Callisto had a smirk almost like that... he thought, a little unnerved. It didn't show though. Callisto, last he heard, had been a goddess. And had been killed by Xena after Gabrielle had died with Hope.
"I will. To see how well my brother decided to train you. Though I can tell by the way you carry yourself, it seems to be pretty well. I'd like to see just what skills you've learned."