days obv , you think I have a ferrari as a computer ? <| sep |> I just bought 5 serums what are they for and how do I use them ? <| sep |> cry harder then <| sep |> It ' s not like he ' s looking at the sun the whole time . You look at the ball <| sep |> Forging old weapons to SBWs is random . Once you get a 4 SBW , it will always belong to the same hero when upgraded to 5 and 6 . Legendary heroes are the same Leon from 1 all the way to 6 , and legendary heroes have a golden border in the hero list . Next , nonlegendary heroes change while promoting from 1 to 3 at random , but they are the same class i . e . priest or warrior . 3 to 4 gets you a hero that stays the same up to 6 . So all 3 warriors could potentially promote to a 4 warrior like Uzimat , and Uzimat will always be Uzimat all the way to 6 . Only 4 heroes can use 45 SBWs , and only 6 heroes can use their 6 SBW . Therefore , you don ' t care the name of a 3 or below hero except the class warrior , archer , etc . As then you would know that 3 hero will promote to a 4 promotable hero of the same class . You only care about the name of 4 heroes . Also , there is a Hero Tome in the Library that shows you all of the existing heroes for each class . If the hero has a small little shiny scroll next to them , you can only get them from premium contracts , and they will never appear from promoting a 3 to 4 .