[His smile transforms into something of a confident smirk as he listens to Sokka speak his thoughts on the Poké balls' designs.]

If that's what needs to be done, I could definitely do that with some studying of the matter-to-energy conversion. [He was able to use Symbology with some technology to get a submersible to work, so it wasn't out of the realm of possibility for him.]

But I think the trainers would trust something built more to the schematics of their own world. Their Poké balls seem to work okay here without too much fuss.