The Dragon Scale Armor is an artifact from Heroes III — Heroes VII.
Heroes III[]
Worn on a torso, this item increases your attack and defense skills by +4.
Heroes IV[]
Increases the hero's Melee and Ranged Defense by 25. Also grants the wearer the Fire Resistance ability.
Heroes V[]
Adds +3 to hero's attack and increases initiative of all large creatures in hero's army by 5%
Heroes VI[]

+5 Might Defense, +5 Magic Defense. Requires: Might Affinity
Heroes VII[]

+4 Might, +4 Magic Defense.