Razorbones
CREATURE 20Variant tanglebones
Sometimes, when murderer buries a large number of victims in a mass grave, the vengeful spirits of the slain can become similarly tangled together. When these spirits can't untangle, they instead return to their physical remains, fusing into one horrific mass of bones and black, tar-like sludge-a tanglebones.
One awful tale speaks of a bitter old dowager who learned that, through a legal loophole, ownership of her estate would revert to her estranged daughter. She murdered her 13 servants, buried their bodies in the house's basement, and then played the gracious mother in handing over the manor keys at the appointed time. One night, the tanglebones that arose from the dowager's atrocity murdered the daughter and her family. By the time the authorities learned of what happened, the dowager had fled the nation, changed her identity, and (the story goes) wasted no time rebuilding her fortunes-this time becoming a queen.
A razorbones can shift and adjust its mass to fit into smaller areas, allowing it to fit through tight spaces as if it were a Medium creature. While Squeezing, it can move at its full speed.
A creature with void healing draws health from void energy rather than vitality energy. It is damaged by vitality damage and is not healed by vitality healing effects. It does not take void damage, and it is healed by void effects that heal undead.
The razorbones makes a single claw Strike against every creature in reach. These attacks count toward the razorbones' multiple attack penalty, but the multiple attack penalty doesn't increase until after the razorbones makes all its attacks.
Until the next time it acts, the razorbones appears as a sprawling mass of bones. It has an automatic result of 56 on Deception checks and DCs to pass as a grisly but seemingly harmless mess.
The monster can instead use Improved Grab as an action and choose one creature it's grabbing or restraining with an appendage that has Improved Grab to automatically extend that condition to the end of the monster's next turn.