You can see in darkness as if it were dim light up to a range of 60 feet. Objects seen in this range are in muted shades of grey, greens, and purples.

You can climb any surface, including walls and ceilings. You gain a climb speed equal to your walk speed.

You can use your webbing to restrain foes during combat. As an action while grappling a creature, you can secrete silk to restrain them. The target must succeed on a Strength saving throw (DC 8 + your proficiency bonus + your Constitution modifier) or become restrained. The restrained condition lasts until the creature breaks free with a successful Strength (Athletics) check against the same DC.

In addition, you can cast the Web spell as an action without expending a spell slot. Once you use this trait, you cannot do so again until you finish a long rest.

You can make a bite attack as a natural weapon. This is a melee weapon attack that deals 1d6 + your Strength or Dexterity modifier (your choice) piercing damage. When you hit with this attack, the target must make a Constitution saving throw (DC 8 + your proficiency bonus + your Constitution modifier). On a failed save, the target is poisoned for 1 minute. The target can make a saving throw at the end of each of its turns, ending the effect on itself on success.

Your chitinous spider body provides resistance to poison damage. Additionally, you have advantage on saving throws to resist being poisoned.

You can speak, read, and write Common or Undercommon, and you are fluent in the unique dialect of Thri-Kreen spoken by other Arachnae.