your dexterity score increases by 2 and your constitution score increases by 1

Due to your spider lower half you are unable to use mounts

Your creature type is considered to be both humanoid and monstrosity.

You have a climb speed equal to your walking speed. You can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Additionally, you ignore movement restrictions caused by webbing.

As an action You can use your webbing to create a 10 foot square of webbing that can either be placed on the ground or connected between 2 objects, this area counts as difficult terrain. You can use this ability a number of times equal to your constitution modifier (minimum of 1) you regain all uses after a short or long rest

You have advantage on grapple checks on targets in your webbing

Your eyes are adjusted to dark caves and other extremely dark crevasses allowing you to see dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

You know common and undercommon