Hero tier upgrades& hero rosters

So for my situation I spent alot of money to get heros an the Ascension pack is Bs… so Y not just have a upgrade hero button for like 15, 20 bucks…(might need to lvl the last tier) or disenchant other Heroes and pull Ascension item from them…
Another topic having 2 hero rosters 1 for all your main heros an the other tab everything u don’t care about… would make cycling through and upgrading a lot easier.