The episode focuses on the transition between the trial's first and second phases:
The 100th episode of the anime, titled " Mest " , serves as a pivotal point in the Tenrou Island arc, transitioning the S-Class Wizard Promotion Trial into a much darker conflict. Episode Overview Title: Mest (メスト) Original Air Date: October 8, 2011 Fairy Tail Episode 100
The trial is interrupted by the appearance of a mysterious boy (later revealed as Zeref) whose mere presence causes immediate death to the surrounding flora and fauna. The episode focuses on the transition between the
Adapts chapters 211 through 213 of the original manga. Plot Summary titled " Mest "