At one time these swords were known as blooding blades because young Trog warriors would head into the wilderness with them to fight and kill a bears.  The was discontinued when much worse things than bears began killing the warriors.</Description>

"kill a bear"  singular and "The" of the second sentence should be "This"

Thanks!

Might I suggest:

"Once known as blooding blades, these swords were carried by young Trog warriors eager to prove themselves by fighting and killing a bear.  The tradition ended, however, when fell beasts far more fearsome than bears began killing the warriors."

And if any grammar gurus (said with much deference and a nod, I was just an editor of my HS newspaper 25 yrs ago) want to chime in, please do!