Talk:Redeye/@comment-25474140-20150216062446/@comment-66.62.115.199-20150216182323

^ arcana bought in the in-game store only increases atk or def by 50. 20 arcanas would increase a stat by 20 x 50 = 1000, and that's nowhere near enough needed to max a SR, let alone an UR.

Given that an average HSR has 9000 atk, and a SR's max atk is 19999, you'd need 10999 atk til max, which is 10999 / 50 = 220 arcana. At least. And that's just for one stat. URs have a max of 29999, so you can imagine you'd need even more arcana to max a UR.