Army of Ruin
221 Achievements
GOG
Shackles
Forest I - Upgrade Volcanic Orbs to Level 5
36.7%
How to unlock the Shackles achievement in Army of Ruin - Definitive Guide
Volcanic Orbs is one of the weapons available from the start. Simply pick it as an option when available during leveling, then continue to upgrade it to Level 5 by the time you finish this stage.