When traversing difficult terrain, your movement is not hindered. Additionally, you are able to climb at a speed of 35 and you are able to swim at a speed of 35.

Due to your ancestor's Underdark origins, you are accustomed to the dark. Gain 60 feet of Darkvision.

Your vicious bite attacks produce an acid that deal 1d4 Acid Damage. Additionally this attack corrodes metal armors, reducing the targets Armor Class by two if they are wearing it when attacked.

Due to your Spider Nature, your Dexterity, Intelligence, and one other ability score are increased by 1.

You are able to create up to 25 feet of web that is as strong as hempen rope as a Bonus Action. You can only do this three times per long rest.