You are immune to poison damage and the poisoned condition.

When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. If you do, you reduce yourself to a pile of bones, render yourself prone, and are considered to be under a similar effect to the feign death spell. While subject to this condition, you are unable to move or take actions other than using an action to end this effect. You can't use this feature again until you finish a long rest. Additionally, when you take the hide action, you can collapse and fall prone to become indistinguishable from a pile of inert bones.

Whenever both of your hands are free (not including equipped shields), you may choose to use a free hand and a bonus action to remove one of your hands or arms. If you remove an arm, it counts as a weapon with the finesse property that deals 1d6 bludgeoning damage, and you have proficiency with your arm while you wield it. If you remove a hand, it counts as thieves' tools or a similar set of simple tools while you hold it. Alternatively, you can control your hand as if by the mage hand spell. Your hand has a 15 foot climb speed and can support up to 10 pounds of weight. You always know the direction and distance to your hand. In any case, removed hands and arms may be re-attached by using another bonus action. If you lose a limb, you may replace it using a similar limb from another creature over the course of a long rest. This replacement will gradually shift to fit your body, losing any flesh or muscle, and shrinking or growing to match your form.