Razor Tail Pierce?

There has been talk that PIERCE doesnt work anymore?

Would Burzia Still Pierce? If It Does Then Would Razor Tail Work?

STATS:
Defense: 96-107 (varies)(Base Defense: 31-36)
Required Level: 32
Required Strength: 20
Durability: 14
16 Boxes
+120-150% Enhanced Defense (varies)
+15 Defense
+10 To Maximum Damage
Piercing Attack (33)
+15 To Dexterity
Attacker Takes Damage of (1 Per Character Level) 1-99 (Based On Character Level)
(Only Spawns In Patch 1.09 or later)

Piercing GUIDED doesn't work anymore. Piercing multi, etc... still works.