Dueling Manual Book 3 is a passive item in Basement Moon, a mod for The Binding of Isaac.

+0.4 Shot speed

+1 Damage per 1 Shot speed (max +2)

+0.5 Fire rate per pierce-type item (max +3)

If have at least 3 pierce-type items, x1.2 Damage multiplier

Entering a room grants a shield that negates damage once
(Max 2 times per stage, does not stack)

Every 2 shields lost, +10% Damage in current floor (max +30%)

Pierce-type list Cupid's Arrow
My Little Unicorn
The Nail
Mom's Knife
Screw
Sagittarius
8 Inch Nails
Spear Of Destiny
Lead Pencil
Backstabber
Pointy Rib
Damocles
Sharp Key
Knife Piece 2
Carpenter's Nail
Gathering Skulls
Once, A Blessing
Keenbranch

Dueling Manual Book 3 can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Dueling Manual Book 3 have been documented.

* Note that not all possible synergies and interactions are listed here.

• Download Basement Moon from the Steam Workshop.