Fighting. Yeah. About that. It's not as if it's his primary go to but Kaiba is relatively confident in his abilities to take on normal opponents. He was capable of flipping henchman taller and bulkier than him, and he was usually able to assess situations quickly enough to react to them. He's not worried. "Well enough." It wasn't overly descriptive and likely left a lot to be desired.

".. Besides, I might have a few other tricks up my sleeve".