Wind Walker

As Leo and the others were discussing battle strategies, the bandit leader and his minions were not just waiting around. 

At this moment, the bandit leader slowly approached the three of them, a ferocious smile on his face, 

"Pathetic insects, I am not someone you can mess with! None of you will survive today!"

"What the hell are you doing?"

Leo raised his hand, and somehow, the airflow around the bandit leader began to ripple, creating a massive, air-formed slap that struck the bandit leader's face, leaving an immediate handprint.

Of course, the damage caused by Leo's move was minimal, as it wasn't a proper attack, and his goal wasn't to deal significant damage to the boss using this method. 

Leo was merely trying to draw aggro.

After their earlier discussion, the trio decided that Leo would pull the boss's aggro first, then Emperor and Inky Dragon would clear out the minions before focusing on the boss.