TT's probably dead on most servers because most people don't have the patience to deal with the npc difficulty and/or the miserable drop rates. I've been farming Vault of all places for nearly a week. STILL hasn't dropped. Vault. A 3 star card. Maybe I'm just unlucky but when I see how annoying it is to just get this measly 3 star card to drop from a pre-60 dungeon, I'm not feeling all that good about the exp dungeon cards, void ark, or thordan.