Gatekeeper of Chaos

Gatekeeper of Chaos is a Legendary Costume for Picky Pyro-tiger, released alongside Rage of the Blue Flame and  Ashen Scars in the first half of The Longing of the Rising Flames update. It is obtainable by obtaining Fire Spirit Cookie's Immortal Cataclysm.

Story
''If you ever try to venture into the Dragon's Valley to ask for mercy from Fire Spirit Cookie, a dark shadow lurks by the entrance. That shadow is Picky Pyro-tiger, not letting anyone pass without a battle that truly burns through the candle of life. After all, all that awaits on the other side is unending chaos...''