>>57851541
Yes, according to Emerald's pokedex

>>57851557
>Would your clothes get destroyed? Would they grow with you?
I'd say no, they aren't destoryed. Dynamax pokemon keep their items and i don't see how an Assualt Vest differes from a regular vest
>Approximately how big would you become?
About as tall as a large football stadium in UK, which is like 50 meters