List of Available Bosses

Bosses Readily Available
Vermilion Emperor Eldunar Ezofuji-no-Tsukuyomi
King Castiel Leiheng of the North and South
Earth King Hui Peng
Light King John Itaruki
Dark Lord Saruyoshi Shinjuku
Queen May Lin Doa of the Four Winds
Setomaru Cazmo, One Tailed Jinchuriki
Ieyasu Leihing, Three Tailed Jinchuriki
Tsukuru Yoshida, Four Tailed Jinchuriki
Yami Sentoki, Five Tailed Jinchuriki
Kihana Leiheng, Six Tailed Jinchuriki
The Great Redeemer and Lord of Mortals, Seven Tailed Jinchuriki
Yamato Vai, Eight Tailed Jichuriki
Konoe Ezofuji-no-Amaterasu, Nine Tailed Jinchuriki
Master of Fire, Kasai Suzaku
Master of Water, Karasu Kazegami
Master of Air, Hiroto Goro
Master of Light, Anaria Shola
Master of Dark, Bo Reed
Master of Earth, Yurusu Kessho
Wesley Sin'dorei, Grand Master of the Dawn Crusade
Malfurion Fal'moria
[MORE TO COME LATER]

Bosses Available By Announcement Only
Spirit King Susano'o Ezofuji
Illidan Fal'moria the Betrayer
Fire Lord Tsukuyomi Ezofuji
Fire Lord Amaterasu Ezofuji
Fire Lord Kouzai I Ezofuji
Fire Lord Kouzai II Ezofuji
Earth King Lu
Avatar Ziio Aarushi
Warrior of Water, Hiroyuki Yamato
Warrior of Air, Kyofu Dorobo
Warrior of Light, Ulrich Nara
Warrior of Dark, Daisuke Mouse
Warriors of Fire, Kaede and Lydia Hotaru
Warrior of Earth, Enya Takamagahara
Spirit King Owlan Ezofuji-no-Tsukuyomi
Spirit King Raiden Ezofuji-no-Susano'o
Spirit King Kagutsuchi Ezofuji-no-Susano'o
[MORE TO COME LATER]

Users Available for Challenge
Dances With Derp the Derp Slayer
Bailey the Flamewarden
Plays With Squirrels
The Great Redeemer and Lord of Mortals
Tenka Musou Wolfie
Sara the Flame Warden
Lyssa the Flamewarden
Niya the Flamewarden
Stephy the Flamewarden
[MORE TO COME LATER]