Due to the cycle of death and rebirth that Pyrrhus endures by being imbued by a phoenix's essence he sometimes is reborn into different bodies. Imagine how he felt when he, instead of being reborn as a deadly predator, was reborn as a bunny rabbit. He eventually learned to use it as an advantage though. Afterall, no one suspects the rabbit next to them is actually a vicious predator, even with the bright red and orange markings serving as a warning.

Art by  BaronVonBoschiit as part of reddit's r/furry art request thread