Board Thread:Card Unit Builds/@comment-81.50.199.74-20140714165458/@comment-25067771-20140714232712

Wah, don't max Kiyohime's attack then. Max out Count Down. In the long run she'll give you better results.

To max the attack of any card (29,999 for H/URs, 19,999 for everything else), you buy/use attack arcana from the shop. You buy them with rare medals which you can trade your R and SR cards for.

Each arcana will give your card +50 attack. So when you go to the upgrade screen you can fuse your card with N card + attack arcana and you'll add 50 attack to your card. You keep doing this until your card has reached its max.

It takes a while and it will cost you roughly 40,000 medals to do. That being said... Since it's so expensive, you might want to just wait until you get an HSR Leviathan EX. I promise you that maxing the attack of HSR Leviathan EX will be worth it for you.