i think rogue need more lifesteal or another heal,rogues become too slow(exept goldfish with pogos),thats why rogue need to upgrade lifesaving ability.

I think Blizzard have to make "Hall of Honor" (maybe different name)where could be placed cards from old expansions and they become playable for standart.There is a lot of perfect cards from ols exp-ons that deserve to become classic.Hearthstone is evolving,but main must-play cards are pretty old-fashioned.