Step it up, demons! Come at him with your full force if you want to survive! If you need to talk, talk, but if you attack half-heartedly you'll get hurt and lose your fighting force, and it'll be one less tool to use later on!
I mean, if he was going all out they’d be instantly dead... it would’ve made more sense thematically if it was him versus the Maou, generals - as well as the entire army that he whipped into shape.
So this is Leo basically going "Kill me if you want to live!" but he's not really trying to kill them.
Why does it feel like the power of friendship is going to save the day? 🙄