In Gungnir, the Counter Number is a value assigned to equipment that enable a unit to counter when Guarding against an enemy's direct attacks. The value can be I, II, III, or IV. If the of the number of the skill used matches the counter number of the equipment, the unit will launch a counter attack upon a successful parry. Ex: If Norman Strike (No. I) is used on a guarding unit whose equipment has a counter number of III, they will not be able to counter attack.