You can walk on difficult surfaces such as walls, or upside down on ceilings without needing to make an ability check, with your hands free and at full movement.

You can spend 1 hour to coat an entire room in webs, reducing the movement speed of non-spider like creatures by half. After you use your spider webbing, you can't use it again until you complete a long or short rest.

You have disadvantage on attack rolls and Wisdom (Perception) checks. (When what you are trying to perceive is in direct sunlight.)

When not wearing armor, your Armor Class is 11 + Dexterity modifier.

The physical transformation of a Drow into a Drider is not even the final torment Lolth inflicts upon her hapless victim; a binding curse is laid upon their mind, reflecting the pain of the initial transformation every time any thoughts against Lolth cross their mind. Such endless torture breaks even the strongest minds, mere weeks are all it takes to turn a new drider into a perfect slave.

Thinking any thoughts against Lolth causes the entirety of the pain suffered in the transformation to reflect again. Make a DC 21 Constitution Save; on a failure you are Stunned and have your movement reduced to 0 for 1 minute. On a success, this time is reduced to 1 round.

This feature is suppressed by an antimagic field, and may be removed by use of a wish spell, or stronger alternative.

Your Creature type is a Monstrosity

Your Dexterity, Constitution, and Strength Increase by 1.

Being the combination of a drow and a Giant Spider bottom half, you are size Large and take up a 10x10 area

Your base walking speed is 35 feet.

Accustomed to twilit forests and the night sky, you have superior vision in dark and dim conditions. You can see in 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 have proficiency in the Perception skill.

You can speak, read, and write Common, Elvish, and Undercommon.