This is the most powerful of the Prime metals as well as the rarest (counts as Very Rare). It is only found within the depths of certain Prime worlds; as such, it usually only in the hands of those who live deep underground.

Items made from Adamantuim weigh 25% less and cost 500x more than normal. Weapons gain +3 to hit and 1d2 MORE damage; Armor gains a +2 bonus. Items also have +3 to saving throws as well as being able to affect creatures of +3 enchantment restrictions.