For That Guy That Can't Spell "Heirloom"

I think this is some sort of Game of Thrones joke.
I don't watch the show, so I'm not sure.

Air Loom Sword
Weapon (any sword), rare (requires attunement)

This magic weapon has 3 charges. By expending a charge and making a successful attack roll, you may weave a suit of clothing into existence from thin air. The charge is lost if the attack fails. The sword regains 1d3 charges daily at dawn.

The Armor Class you must hit with your attack roll depends on the complexity and expense of the item you weave:

• Clothes, common or robes = AC 10
• Clothes, traveler's = AC 15
• Clothes, costume = AC 20
• Clothes, fine = AC 25