The Fire Pin is an uncommon, and slightly rare pin found in Club Penguin that was available during Sensei's Scavenger Hunt in 2009. If you find all the elements, you could claim your prize, which is the Fire Pin. This was the first step of the new fire journey.
The Fire Pin was complete the Claim Prize. They challenge their friends in Card Jitsu Fire. They got all the Fire Suit. They challenge Sensei.