Easyest way for making Dynamic armor sprites?

Ok so since I wasnt aware I could use the evaluate expression action...

It ocurred to me that I might be missing something when it comes to making dynamic armor sprites...

I was wondering what would be the easyest way for making dynamic armor ex: dynamic chest, dynamic hands, dynamic feet, dynamic helm??

Does anyone has any clue?

It depends on the size, but individual frames is by far the easiest.