The Hat of the Sharp Caster is a rare Helmet that rerolls the die(s) on spell attack rolls.
All you need now is a holster for your wand, tobacco to chew, and some sort of pack animal to ride, and you'll look like a complete and utter bingus.
Properties
Helmets 
Rarity: Rare
Weight: 0.5 kg / 1 lb
Price: 50 gp
Special
The wearer of this item gains:
- Sharp Caster: When you roll a 1 or 2 on a damage die(s) for a Spell Attack, that die(s) is rerolled once.
Where to find
- Sold by Tara in the Lower City. This is Tara's first vendor location and first item sold. She can be found on the roof of The Devil's Fee at X: -29 Y: 6, though she only appears if previously spoken to on the roof of the Open Hand Temple with Gale in your party, and she only accepts Fish or magical items in exchange for this item.
- See the Tara page for information about Tara's other appearances.