Ms. Doom Bringer's fortress is the interior of the wicked, malicious, and sadistic fairy hunter named Ms. Doom Bringer (Carolyn Lawrence), who disguised herself as a nice young substitute teacher named Ms. Sunshine with long red hair at the beginning of No Substitute for Crazy, so nobody else would notice her appearance, until near the end of the episode where she has finally revealed her true nature, thanks to Timmy Turner's stupid wish. This battle arena was serves as her secret hideout and hidden citadel. Most importantly, this battle arena made its first debut in The Fairly Odd Parents: No Substitute for Crazy. However, this classroom-like fortress was eventually remains abandoned after Ms. Doom Bringer was killed by an incoming school bus when she attempted to kill Timmy Turner (Tara