The Frostner is a powerful two-handed silver hammer capable of dealing frost, blunt, and spirit damage. You will need a level 3 workbench before you can craft this hammer as well as 10 ancient bark, 30 silver, 5 Ymir flesh, and 5 freeze glands. In order to acquire Frostner, you will have to slay some Drakes up in the mountains. Ymir flesh can be purchased from Haldor, a trader that is found randomly in the Black Forest. As a two-handed hammer you will find this weapon has increased knockback, parrying, and blocking. It may not be Mjolnir but you will find that Frostner will make a close companion and deadly tool.