So the power weapon section pretty clearly states that if you parry with a power weapon succesfully against a weapon that doesn't have this bit of the profile, you have a 3 in 4 chance of destroying your opponent's weapon.
While I have no problem when dealing with heretics or a CSM wielding a chainsword versus a power sword, something feels...off about it when used against natural weapons. It seems out of place for a Space Marine to simply parry against his Tyranid Warrior opponent and lop a couple of his arms off.
Is there a rule I'm missing on this or something I'm misreading, or does the RAW really mean that I can charge a Hive Tyrant and simpy parry in order to reduce the number of attacks he gets every round?