Jack looks at Ramza like he's crazy for a second, did that actually work? This place is nuts. But he shouts back, "Save it!"

He's absorbing enough health from his Dark Knight attacks that he doesn't need it. Even a simple slash regenerates his health. He still doesn't understand it, and intends to have a very long talk with Chiaki when things are quieter. But, for now, he can only focus on the leg in front of him, hacking away again, again. Spells won't shortcut this, so he has to take it out on raw damage.