That answers the questions about if he throws a slider, and now makes me want him more, imagine all the fun we could have with shuuto.
Here's the video:
It looks like he has a bit of a hitch in his delivery and seems to hide the ball well, I wonder if that whip of the arm has anything to do with his injuries? Oh and my favorite part:
If that comes to reality I will be thrilled; it would be a Padre-esque move, using minor league deals to grab relievers with interesting aspects.