Multiverse Crisis: Pirates in the New Age of Heroes
Third Law items are items made with technology sufficiently advanced to be indistinguishable from magic. They cost 1.5 times what an item would normally cost, and they are for all intents and purposes, nonmagical. This means that they are immune to Dispel Magic, Rod of Cancellation, Mage’s Disjunction, Antimagic Field, and all other effects that negate magic. The upshot is that these items to not get saving throws against other spells, and can be destroyed by effects that disable technology such as EMPs.