Army of Ruin
221 Achievements
GOG
Armored Pads
Shrine I - Upgrade Wolf's Fang to Level 5
22.6%
How to unlock the Armored Pads achievement in Army of Ruin - Definitive Guide
To make this achievement easy, you can simply play as Ogol since he starts with the Wolf's Fang. That eliminates the randomness of hoping it shows up. Then, since this achievement doesn't actually require you to finish the stage, you can just focus on experience gain and leveling up quick so you can max out this weapon.