How do you become a gladiator in dragon quest 9?

Answer 1

Talk to the Priest outside the inn at AllTrades Abbey. He will give you a quest where you have to kill 3 slimes with 100 tention using dragon slash.

To do this make your character egg on someone with dragon slash and let the others defend, if you keep egging on eventually you will get to tention 100 and you can kill it with dragon slash. Do this with 3 slimes and you should get the Gladiator Vocation.

Hope this helped. :)

(Make sure whoever kills the slime with dragon slash is the one who has 100 tention)