An Adamant Breastplate is a smoky-gray breastplate that's considered a priceless, supernaturally durable piece of armor. It is made from adamant, the lightest yet strongest spell-forged metal alloy, which means it can't be bent or broken, and is impenetrable. It will stop any blade, turn any arrow, and can even hold up to the force of a sledgehammer. The breastplate is a coverted item wealthy lords have been known to empty their treasuries to aquire it.
One were fished up by the satyrs Newel and Doren from Kurisock's Domain, they sold it to Seth for some batteries, who in turn gave it to Kendra. It saved her life many times.