Adamantine Bit (Barding)

The bit is an important item of a horse's tack. It usually refers to the assembly of components that contacts and controls the horse's mouth and includes the shanks, rings, cheek pads, and, mullen, all described here below, but it also sometimes simply refers to the mullen, the piece that fits inside the horse's mouth.

This barding is reinforced with adamantine, one of the hardest substances in existence. While this bit is used, any 1 rolled by the mount related to running or maintaining control becomes a 2, and the rider gains advantage on checks to control their mount. 

Can be used by any mount which does not require an exotic saddle.