Seymour IS NO FOOL! He wouldn't repeat the same thing over and over again. It isn't like in FFX. He isn't being dictated by the game which moves to do and in which order. He can decide for himself and switch them around.

I have stated this before. He can attack physically. He can strike Sigma at close range with his weapon. I'm pretty sure that if he can hold off a giant creature, running at him with full speed and not look like he's broken a sweat, he can pierce Sigma's armor.

So Sigma can teleport? Big frickin' deal. He goes poof and appears somewhere else. I keep repeating that with the Mortibody on his side, he can look in multiple directions.

I also must repeat that with Protect, his own physical defense and Cura, he is definately gonna remain far from death.

Regarding the mechanical things, I forgot an important feature of Seymour. The abillity to summon Anima. A giant demonic creature, blasting pure death, or energy blasts can definately destroy Sigma's mechanical whatevers.

With Anima, the Mortibody and Seymour all against Sigma, he doesn't stand a chance. Here's how it could look

Seymour: Summons Anima
Sigma: Teleports and fires lasers or whatever
Seymour: Hurt, but casts Protect on himself
Mortibody: Casts Cura on Seymour
Sigma's mechanical things: Breathe fire at the trio.
Anima: Attack
Seymour: Flare


As far as I know, that's it. Anima blasts away his mechanical things, and he blasts us with lasers. He can teleport, but with three things watching in different directions, for him he is not gonna be able to sneak up on Seymour.