Devil Bear/Fridge

Fridge Brilliance
"Devil Bear: "And if I am so "evil", then why am I the ultimate punisher of evil?""
 * At first glance, any seamstress/tailor can see that the sword Ursa uses (which is "sharp enough to rip out the seams of even a Virtue Bear") is a seam ripper.
 * Wait, why is, who seems to be the most unlikely Virtue Bear to do so, the one who ends up turning into the devil? In his own words: