The Rat Bat is a rare greatclub that grants the wielder 
Advantage on their Attack Rolls against beasts.
A club with nails hammered through it. Classic.
Properties
- Damage
1d8 + 1 (2~9) + Strength modifier 
Bludgeoning - Details
Rarity: Rare
Enchantment: + 1
Two-Handed- Dippable
Melee: 1.5 m / 5 ft
Weight: 4.5 kg / 9 lb
Price: 190 gp
Special
The holder of this item gains:
- Advantage on Attack Rolls against beasts
Weapon actions
If you have proficiency, equip in main hand to gain:
Concussive Smash (
)Hit an enemy with all your might to deal damage and possibly
them.
Where to find
- The Rat Bat can be found behind the bar (around the Loose Planks concealing Madeline's Ledger in The Waning Moon in the Underdark X: -224 Y: -78.