User blog comment:Lord Loss/Monster Appreciation Day: Agnaktor/@comment-94.13.8.28-20110811175831/@comment-81.129.165.176-20120608103535

You can use a switch axe in sword form to pierce its armour. However, while you won't bounce off, you'll still do very little damage, and have additional penalties to your sharpness, so it's not really that good an idea.