Ability Score Increase. Your Dexterity score increases by 2, and your Wisdom score increases by 1.

You have eight limbs. Choose whether you are six-legged or six-armed. 

Six-Armed: You have six functioning arms. You may only wield 2 melee weapons. You cannot wield 2 two handed weapons. If you are wielding a ranged weapon in your hands, you may make an extra two attacks when ever you take the attack action. These attacks are at disadvantage and do not add your ability modifier to the damage.

Six Legged: You have a thorax of a spider and six legs. You have a 30ft climb 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.

Darkvision. 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.

Arachne's Lore. You gain proficiency in one skill of your choice, from: Acrobatics, Intimidation, Perception, Stealth, or Survival.

You can cast the spell web a number of times equal to your proficiency bonus. Wisdom is your spellcasting ability for this spell. You regain all uses when you finish a long rest.

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