Purge approved
As for Overcome, i shall approve it, however you must remember, that you will not be completely unaffected by attacks, it just weakens it. You'll still feel pain and you can still be hurt, its just not as easy.
As for the last one, are you adding the opponents element to your weapon? How is this being used? How long will it last? And a max of once per topic. Also reset after each topic as well
So approval of the first two, and just a little work on the last.