During the Master of Arms event, the skill was changed from Mace to Heavy Weapons, the spells adjusted accordingly and the base damage changed from 23.8 - 34 to 29.4 - 42, Attack mod changed from 5 to 3, defense from 0 to 2
You infuse the ingot with a superb impression of your mace skill.
You give Silencia's Magma Golem Perfect Isparian Mace Ingot.
Silencia's Magma Golem gives you Perfect Isparian Mace.
The gem slips into the weapon altering its properties.