During the Master of Arms event, the skill was changed from Sword to Finesse Weapons and the base damage changed from 33 - 55 to 28.8 - 48. The Activation requirement of Sword: 400 was removed. The Attack mod changed from +12 to +14 and Defense from +12 to +10
directly after the patch, the new Skill was Heavy and the base damage changed from 33 - 55 to 34.2 - 57. This was hotfixed on Feb. 23rd.