Okay so here is my opinion. No player job is bad, but thief is pretty low. It has ok stats, but none of it really sticks out. Trap is good on the player, but that’s basically all you have. It’s strongest move rock rain is weak compared to a lot of other jobs, and whirlwind blades will do consistently more damage than phantom strike. That’s really sad. Pilfer was good, but you get so many candies and bananas in the switch version that it’s useless. Huge trap is good, but here is the issue. You are devoting an entire spot of your team to spamming trap which only works on basic attacks. A healer would make thief completely useless in every way. At least you can spam huge trap as player, the ai won’t even do that. So it’s even worse as an ai.
Ah that’s good. But even still, I think the activation chance isn’t too good. It has good damage in the beginning but as you go further through the game, it becomes less useful, thief is fine for base game. But it won’t hold up in post game.
Alright, you had a cleric. Anyways, you can do any job combination and beat tower. Otherwise that would it a problem if it were impossible. Theif just is not better than the other jobs, besides flower as player.