Your Strength score increases by 1, and your Constitution score increases by 2. 

Driders are magically created from fully matured drow and once they undergo this transformation only have about 60-80yrs to live. 

Driders are beings of chaos, as such they have a tendency to be closer to the evil alignment, although some have been known to be chaotic neutral

Driders stand anywhere from 5-9ft tall with their arachnid lower half being 2-4ft wide. Your size is medium unless you’re determining carry capacity, push weight, or drag weight. In those cases your size counts as large

Your base walking speed is 40 feet. And climbing speed is the same as your walking speed. You can also use your spider appendages to climb on vertical surfaces and ceiling while keeping your hands free and webs don’t cost extra movement speed. Also due to your spider lower half, you cannot swim or fly without magical aid. Also you cannot wear any gear on your lower half unless specifically designed for you. 

Your creature type is monstrosity rather than humanoid.

If you move at least 30 feet straight toward a target and then hit it with a melee weapon attack on the same turn, you can immediately follow that attack with a bonus action, making one attack against the target with your tarsus. 

Your hooves are natural melee weapons, which you can use to make unarmed strikes. If you hit with them, you deal piercing damage equal to 1d6 + your Strength modifier, instead of the bludgeoning damage normal for an unarmed strike.

You have darkvision out to 60ft. 

You have proficiency in perception and stealth

You can speak, read, and write UnderCommon and Common.