Item Modification (2.1)
Your armor and weapons are full of item modifications which include Armoring, Barrels, Hilts, Color Crystals, Mods, Enhancements, and Augments. When selecting item modifications, it is important to balance your character stats according to the stat priority outlined on the Stat Priority page and below. This guide lists the Best in Slot item mods for a(n) Advanced Prototype.
Aim >= Accuracy (110%) > Power > Surge (75%) > Crit (30%)
Armoring, Barrels, Crystals