"A Changer," responds Theo in same. "What are you doing?"

"We are stopping this pilgrimage!"

"Do you want to tell me how to disable your device without destroying it? I'd hate to have to do that."

"Your magic doesn't work here!" he boasts.

… Theo tries changing the color of a patch of ground.

It goes!

Point. "I think you're wrong."

He looks. "What's that?"

He changes the color again. "A patch of ground that I am magicking?"

He stares, then looks at Theo. "Ground! That is nothing. You cannot affect our mighty machina!"

"Would you like to point me to the most reconstructible bit of it, so I don't just destroy all your tech? I am a fan of tech, it really bugs me what with this whole place."

He points.

Theo tries poofing it.

It is poofed.

The Al Bhed stares.

And his net thrower throws a net at Kaede.

Theo also poofs said net, in pieces.

Well they'll run away on their scooters and machina, then, won't they?

Theo follows after them, flying.

They are fast! Naively faster than he is but not in the uneven terrain of the Macalania Woods.

"Would you care to stop and identify yourselves?" he calls.

Run run run!

Would they care to stop if he gets in front of them and in their way?

They will care to try to get around him!

He will carefully attempt to grab one of them off their scooter, then.

"Let go! Let go!"

"Stop," he suggests. "Why don't you stop."