A hero may only ascend when they have leveled up to their current maximum level, at which point their Level Up button will be greyed out and no longer available until you ascend. Each time your hero ascends it will increase their maximum level potential by 10 and will reset their level back to 1. Ascension costs specific ascension materials which are dependent upon the ascension level itself as well as the color/element of the hero.

Each hero has certain levels of ascension. For a 5* hero it is 4 levels beginning at 50 then additionally at 60, 70 and finally 80. Each ascensions requires specific amounts of resources as well as specific ascension items. Resources and ace tin items are collected as one plays the game, quests, challenge events, fighting titans opening chests and doing elemental chest. One can on occasions purchase some of these items too.