From what I recall, DD was always cheaper to level than other 4* characters. From the discussions on here in the past, it's as if there's a discount on his cost, which sometimes isn't presented well. But it's a cosmetic bug rather than functional.
You could always test it by levelling him, and seeing what it actually costs :evilgrinemoji:
OJSP said: My discussion thread with some helpful examples from others. You could experiment and make you own conclusion too. I thought the new Level Up button would solve this problem,.. apparently I was wrong.
Moon Roach said: From what I recall, DD was always cheaper to level than other 4* characters. From the discussions on here in the past, it's as if there's a discount on his cost, which sometimes isn't presented well. But it's a cosmetic bug rather than functional.You could always test it by levelling him, and seeing what it actually costs :evilgrinemoji:
jamesh said: I posted this image of my results from doing a single level per restart of the game in the thread in general discussion:As you can see, it is offering me two different costs to go to level 270. I believe clicking the one on the right would bring me up to the regular cost of levelling a 4* character. Using the button on the left will net a 28.5k iso discount.I didn't use this method from level 70, so it is possible you could make even bigger savings.