Umm would it even be that strong in standard right now, like what do you kill? Cube lock is safe, jades are gone, late game control decks aren't around really.. so sure why not? Maybe settle for 4 mana instead though.
why are you are only comparing it to the meta right now?... Old BGH undermined the entire allure of minion stats, where a minion was bad if it was too strong. And everyone ran him so it was lame