Board Thread:Card Unit Builds/@comment-25113930-20140715113215/@comment-25067771-20140716005001

It should be applied into the base stat of the card. It will increase the white number, not the blue number in parenthesis.

For instance if you apply an attack arcana to this picture:, then the base will go from 4050 to 4100.

Try again and see if the base stat is increasing. If it isn't then you could have a problem or bug going on.