Wait, say what professor!? Paint war? Jace automatically looked at his uniform and could already hear his mum scolding him. But then, there's his dad who could cover up for him. He'd know what to do. Removing his robe, Jace stuffed his black uniform inside his bag and moved to where the Ravenclaws were, and listened further to the professor's instructions.

Oh. So they need to hit the same person twice with their house colour? Easy peasy. And...wait...where are the Ravenclaw boys!? He could feel his cheeks turn red seeing that he is...the only boy again in the group.

...

Jace's eyes widened when his team mates started attacking. Merlin's beard. Going to war without a strategy??? "Ravenclaws!" he exclaimed, his throat immediately feeling hot and scratched just by the sudden burst of voice. "There's a loophole in the rules. Don't worry about getting hit, because we can always get our teammates back by shooting the blue paint, so watch out for each other. If we capture someone from another house, let's make sure they don't get him or her back. Let's go!" With a slight jump, Jace got his wand out and tested the first spell on...

Esme. YEUP. Let's see if she can evade a second hit. "Pingo blue!"