Gray Fullbuster & Loke vs. Mest Gryder & Wendy Marvell

 is a battle fought between Mage of Fairy Tail, Natsu Dragneel, and S-Class Mage of the same guild, Gildarts Clive.

Prologue
After returning from Edolas, Makarov starts the Annual S-Class Mage Promotion Trial and announces Gray and Mest as twi of the eight participants. Gray chooses Loke as his partner while Mest chooses Wendy as his. The two team join the other participants and their partners on the ship towards Tenrou Island. Makarov later explains the rules of the "Power and Luck" trial and Gray and Loke race with their guild mates in order to be the first one to choose a path while Mest and Wendy mysteriously vanishes from the ship. Gray and Loke manage to arrive at the island and choose a path where they encounter Mest and Wendy.

Battle
Note: The events of the battle have not been shown

Aftermath
Mest is left unconscious and later wakes up and goes to charge Gray and Loke. However, he discovers that he and Wendy already lost and that Gray and Loke went ahead when he was unconscious. Wendy begins to cry, blaming herself for their lost since she can't help fight.