Army of Ruin
221 Achievements
GOG
Medicinal Herbs
Glacier II - Evolve Necromancer Gauntlets with Earth Wind
18.7%
How to unlock the Medicinal Herbs achievement in Army of Ruin - Definitive Guide
Necromancer Gauntlets is one of the starting weapons. You'll first need to get it to Level 5 in any stage to unlock the ability to evolve it. Then, during this stage, you need to get the Gauntlets (or play as Selena when you unlock her, because she starts with this weapon), level them up to max, and also get an Earth trinket and a Wind trinket. Once you've done that, open a chest (such as one dropped by a miniboss) to evolve the weapon and unlock this.