Homebrew Alien Species Details

Basics: An alien like creature from the darkness of the abyss. if you travel through the red sea you will be able to find a complete darkness where even creatures with darkvision cant see, it appeared to be a wall of darkness but if entered you'll find yourself lost. these creatures come from that exact same place, they lives in strange string sacks with small spiders, the same small spider will grow up to be about 8 feet and will attach themselves to a bloodiron small to then attach to this alien. they we're kicked out after a powerful beast kicked them into an abandoned goblin cave.

Alien looks: they are green creatures with pink, red, or purple eyes without pupils. they have antennas and they use them to sense if somethings about to hit them. They are color blind, only seeing red colors. they have four fingers with four joints on each, though they are the same length as human fingers, just smaller in width. they have a red back pack like structure on their back on with spider legs can pop out, making the alien 7 feet. 

Alien Traits

You have a symbiote that allows them to climb up walls and make them 7 feet tall.

Creature of the dark

you are vulnerable to radiant damage but are immune to poison and the poisoned status due to the spider on your back releasing poison into you.

Lightvision

darkvision is infinity like its day when its night but light is dark, you can only see 60 feet all around when its light outside.
it's only dim when inside a building with lights.

Ability score increase

you gain +2 int