Astria is leader of team P. This is the team of pranksters and class clowns. They are senior level pokemon who have no real intersest or desire to be in the academy but somehow ended up there anyway. In the case of Astria her family insisted she go despite the fact she would have prefered to go to art school. As a result she now custom makes paintball pokeballs like the one she is holding. Team 'P' is not the only team of pranksters (though they're the only ones I'm drawing). I figure the Juniors have a team 'B', sophmores have a team '&' and Freshmen have a team 'J'.