Pierce

Beasts with pierce are able to ignore some of their target's armor when attacking.

Strong armor may still be able to deflect some of a piercing attack.

Creatures with this trait: Albatross, Arbelist, Badger, Bear, Beetle, Black widow, Brigand, Cactus, Centipede, Crab, Crocodile, Crow, Dragonfly, Eagle, Gull, Hawk, Hedgehog, Heron, Hippo, Leech, Lobster, Mole, Owl, Panther, Parrot, Piranha, Porcupine, Python, Sea turtle, Seal, Shark, Tiger, Tortoise, Turtle, Vulture, Wasp, Weasel

The same tag on items means something else.