Weapon Upgrade Stone II is a Legends of Idleon item: dropped by 5 monsters, quest reward, sold in shops. Drag onto any Weapon to apply. Success Chance; 80% Uses up 1 slots only if Successful

Weapon Upgrade Stone II | Idleon Toolbox

Drag onto any Weapon to apply. Success Chance; 80% Uses up 1 slots only if Successful

Weapon_Upgrade_Stone_II

Drag onto any Armor to apply. Success Chance; 80% Uses up 1 slots only if Successful

Armor_Upgrade_Stone_II

Bronze_Chest(W2)