Quote Originally Posted by Eloah View Post
Plus, the uses are broken up by the offensive and defensive properties the cards initially had. The Balance, Spear, and Arrow were offensive cards, and the Bole, Ewer, and Spire were defensive(or more passive in the latter two's case)
This is a bit of a stretch. It was originally paired up by damage (direct increase and decrease), speed (oGCD and GCD) and resource (TP and MP). The oGCD speed card got changed to crit chance later on.