Spined ShieldArmor 7
Source Pathfinder Core Rulebook
Hit points 24 (Hardness 6, BT 12)
Type Shield
Price 360 gp
Weight 1 bulk
Five jagged spines project from the surface of this steel shield (Hardness 6, HP 24, BT 12). The spines are +1 striking shield spikes.
When you use the Shield Block reaction with this shield, the spines take the damage before the shield itself does. When the shield would take damage (after applying Hardness), one spine snaps off per 6 damage, reducing the damage by 6. The shield takes any remaining damage. When there are no spines left, the shield takes damage as normal.
When all the spines are gone, you lose the ability to attack with them until the spines regenerate the next day.
Effect: Spined Shield Spines
Activate 
Interact
Effect You shoot one of the shield's spines at a target. A fired spine uses the spikes' statistics, but it is a martial ranged weapon with a range increment of 120 feet.
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.
EvocationEffects and magic items with this trait are associated with the evocation school of magic, typically involving energy and elemental forces.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.