Adventure Time Season 9 Episode 7 - Elements Part 6: Happy Warrior Episode Title:Elements Part 6: Happy Warrior.Episode Description:Finn, Lumpy Space Princess, and Gunter arrive in a radically-altered Fire Kingdom. The inhabitants, which include Wyatt (voiced by Andrew Daly) and Lady Rainicorn, attack the heroes. Finn and Gunter try desperately to restrain their violent tendencies, which would allow the kingdom to corrupt them. The group finds Flame Princess, who has transformed into a dragon. When she swallows the jewel necessary to save Ooo, Finn begins attacking her and becomes a fire person. Lumpy Space Princess, angered by the violence, yells at everyone to stop fighting. The kingdom misinterprets her anger, and decides to go to war with the Candy Kingdom. Cinnamon Bun, unaffected by the corruption, frets that this is the end of Ooo.