Whetstone

From NexusWiki

Increases selected weapon's damage and attack statistics. When you cast the spell, type a weapon that's in your inventory's name to Infuse it.

Mana Cost - 90

Aether Delay - 0 Seconds

Duration - Until weapon is removed/User exists the game (log off).

Target - Weapon in inventory.

Level to learn - 55

Required items to learn - 10 Antlers, 20 Red fox fur, 1 Steel saber, 1000 coins.