A lot of my old heroes are piling up in the inventory. They are just taking up space in my hero inventory. I do recharge relic keys once daily and purchase them always in marketplace whenever they are available, however, it seems the relics still just cannot keep up with the rate of how much you acquire new 5* potential heroes. I think by decreasing the relic requirement for old heroes from 50 to 40 for 5* promotion and from 20 to 15 for 2* to 3* promotion would give all players some relief. Hope this gets considered.