As a former Elf, you are considered an adult around the age of 100 and can live to be 750 years old.

Driders are more often than not driven to intense anger and madness by their conditions, tending towards Chaotic and Evil alignments. 

Driders typically stand at 6-8 feet tall and 6ft wide counting the span of their legs and bodies, your size is Medium.

Your base walking speed is 30 feet. 

As a being created through magic, your creature type is Monstrosity, rather than Humanoid. 

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

Accustomed to life underground, you have superior vision in dark and dim conditions. You can see in dim light within 120 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.

While in sunlight, you have Disadvantage on ability checks and attack rolls.

You know the cantrip Poison Spray, and can cast it at will. When you reach 3rd level you learn the spell Faerie Fire, and when you reach 5th level you learn the spell Web. You always have these spell prepared. You can cast them both once without expending a spell slot, and you regain the ability to do so once you finish a Long Rest. You can also cast these spell using any spell slots you have of the appropriate level. Your spell attack bonus and spell save DC for all spells granted by this feature is your choice of Intelligence, Wisdom, or Charisma. 

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