Oxalis Gym is the first gym in the Naljo league, and the first that the player challenges in Pokémon Prism. It is located in Oxalis City and themed like the inside of a volcano. The leader is Josiah, who specializes in Fire-type Pokémon and awards the Pyre Badge on defeat.
Sup. It's Josiah. Yo dawg, I'm not going to make it easy for you. Let's make this battle erupt!
Post-Defeat
...Whoa! You are the bomb! You have earned my badge.
Post-Battle
Pyre badge increases da attack power. It also lets ya use Flash out of battle! Now that's thug! Also take this. Yo so that's called a TM, and it means somethin'... uhm, Technical Machine? Yeh, that's it. Yer Pokémon can learn moves from it, and it has unlimited uses! This TM is for Will-O-Wisp. It inflicts a burn on the foe! On speaking again: So ya, the Rijon League requires eight badges, so... Go for it, bro, get them all.