Just occurred to me, you could just use these and put all the 5/10/15/20/25 cost cards together and make random specialisation trees. 
Strange Idea
just make sure only one stat increase makes it to the 25 slot
Just occurred to me, you could just use these and put all the 5/10/15/20/25 cost cards together and make random specialisation trees.
just make sure only one stat increase makes it to the 25 slot