From Dragon Quest Wiki
Quest #103 - "Gladiator Graduator"
Location Alltrades Abbey, in front of the inn
Availability After defeating Master of Nu'un
Requested by A priest
Fulfilled to A priest
Item Required Use Egg On or Psyche Up to maximize a party member who knows Dragon Slash, and kill 3 Slimes.
Reward Gladiator class becomes available
Detail A Priest at Alltrades Abbey has told you that a gladiator need not only Strength, but also composure. You must demonstrate this by defeating three Slimes using Dragon Slash while you're in a state of super-high tension.
Hint for solution Go to Angel Falls to fight the weakest Slimes. If you have a Priest in the party, have them cast Snooze to keep the slime from fleeing.
Repeatable {{{repeat}}}