Demon ArmorArmor 13
Source Pathfinder Core Rulebook
Type Heavy
Price 2,500 gp
Weight 5 bulk
Crafted from black iron, this crude suit of +2 resilient full plate is designed to make you look like a horned demon, with your face peering out of the screaming maw of the beast.
While wearing the armor, you can attack with the helmet's horns. They are a martial melee weapon with the effects of a +2 weapon potency rune. They deal 2d8 piercing damage and have the deadly d12 trait. On a critical hit with the horns, the target must attempt a DC 30 fortitude against the Abyssal plague disease. The horns can't be etched with any runes.
If you aren't evil, you're drained 2 and can't recover from this condition while wearing demon armor.
Activate 
Command
Frequency once per day
Effect You cast Dimension Door.
Craft Requirements You are evil; supply one casting of dimension door.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
BulwarkThe armor covers you so completely that it provides benefits against some damaging effects. On Reflex saves to avoid a damaging effect, such as a fireball, you add a +3 modifier instead of your Dexterity modifier.
DivineThis magic comes from the divine tradition, drawing power from deities or similar sources. Anything with this trait is magical.
EvilEvil effects often manipulate energy from evil-aligned Outer Planes and are antithetical to good divine servants or divine servants of good deities. A creature with this trait is evil in alignment. An ability with this trait can be selected or used only by evil creatures.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.