Umbrella

Umbrella Element None Type One-Handed Sword CP 15 Cost None Strength 3 Maker Unknown Usable Yes Affliction None Map Location Goblin Cemetery
	[Source]

"Usually something that is used when in rain. By folding it nice and tight, it may be used as a weapon. Kids: don't try this at home!"

—Details Window

The Umbrella is a weak weapon under the classification of sword. It's the second weakest weapon in the game, beat only by the Empty Bottle.