Fiend Listing - Monster Arena
Adamantoise have very strong armor but this can be nullified by having one of your party members use Armor Break on them. They will still take quite a number of hits, so buff up your party members early on in the fight.
|Sensor||“Covered by a hard shell.”|
|Scan||“Protected by a hard shell. Attacks multiple targets with its fire-based Breath. Armor Break and Mental Break are the way to go.”|
They can be found Inside Sin but also in the Omega Ruins as well. They are one of the more common enemies that you will find in these areas.