Vorpal sword

The Vorpal Sword is sometimes dropped by enemies, and the tool tip says "Watch your back, Jabberwock". This is a reference to an poem by Lewis Carroll

“Beware the Jabberwock, my son!

The jaws that bite, the claws that catch!

Beware the Jubjub bird, and shun

The frumious Bandersnatch!” He took his vorpal sword in hand;

Long time the manxome foe he sought—

So rested he by the Tumtum tree

And stood awhile in thought. And, as in uffish thought he stood,

The Jabberwock, with eyes of flame,

Came whiffling through the tulgey wood,

And burbled as it came! One, two! One, two! And through and through

The vorpal blade went snicker-snack!

He left it dead, and with its head

He went galumphing back.