Thread:CookiesNWaffles/@comment-24805234-20140413010101/@comment-25469537-20140414114031

You are not maxing the Arcana, but maxing the raw attack and defense statistics on the card.

You can upgrade a HSR to level 60 by upgrading the card with 2 level 27 Slimes and Arcana Training + Blessing. (Believe you know that step.)

Then you should buy Arcana Forced ATK or Arcana Strong DEF, or both (depending on what results you want.)

Later, upgrade the card you want to max, by using a N card and upgrading material and the Arcana ATK/DEF. After upgrading once, you should find that the statistics of the card is increased by 50 (depending on which arcana, ATK/DEF, is used.)

Just continue to do that until you see the word MAX on your card when you view it. 19999 stat is max for SR and 29999 for UR.