Beast

Beast is a Caryll Rune in Bloodborne.

A secret symbol left by Caryll, runesmith of Byrgenwerth.
A transcription of the roar of a labyrinth beast,
the bearer of the "Beast" rune has accentuated transformation effects.

"Beast" is one of the early Caryll Runes. as well as one of the first to be deemed forbidden.
The discovery of blood entailed the discovery of undesirable beasts.

Beast Effect

The Beast Caryll Rune boosts the hunter's Transform, increasing the power of Beasthood. Ultimately this increases the hunter's damage output and damage taken while Beasthood is active. The rune also reduces fall damage. 

Variants

Beast has 3 variants, found in the Healing Church Workshop, Forbidden Woods, and Lower Ailing Loran, respectively. 

Beast +1

Increases Beasthood by +20 (50% fall damage reduction). Dropped by a Beast-possessed Soul at the bottom of the Healing Church Workshop tower.

Beast +2

Increases Beasthood by +50 (75% fall damage reduction). Dropped by the Suspicious Beggar, located on a small rooftop platform in a tower in the Forbidden Woods. 

Beast +3

Increases Beasthood by +100 (100% fall damage reduction). Dropped by a Beast-possessed Soul at the bottom of the Healing Church Workshop tower.