[quote=Green]
It says he can fight multiple level 1 (one) people while playing chess. As a level 4, I don't see how that's overpowered. It's like fighting a bunch of toddlers.
[/quote]

Enemies with various weaponry and combat prowess. While not at superhuman levels, Level 1 fighting ranges from none to black belt (or other various equivalents). Essentially, if a human can do it, then it's level 1. Being able to fight off multiple of these while having enough concentration left over to also participate in even one high-intensity chess match would be far more difficult than simply pushing toddlers away.