Pots should work just fine. One thing to watch out for is that you use appropriately large pots because sword plants can develop very large root structures that could become root-bound in pots that are too small. MTS wouldn't hurt either. I like to use them anytime I've got a very fine, sandy substrate, as sand tends to compact much more readily over time than larger-grained substrates and can certainly benefit from some aeration by MTS.
I'd love to see some pictures when you get things going