The Chimera Viper Shield undergoes significant changes in Chapter 104 of the web novel when Iwatani Naofumi leans of Spirit and Status Enchantments. Because of his gained knowledge, when Naofumi opens his weapon's tree he is able to see the shield's level and "rarity" which begin at 1/30 and "C" (common) respctivly along with his proficiency with each particular shield. The Chimera Viper Shield had an especially high proficiency due to it's common use so it was maxed at 100 which made its defense increased about 1.5 times.