Species - Demon - Prince of Sin (Pride)

Being a Prince of Sin, especially of Pride, Satan is an incredibly important (Atleast to them) figurehead of Hell

Age - Mayhaps

Presenting as just a fourteen year old child, Satan is slightly older than they appear

Gender - Male

Height - 5'4"

Since he presents as a child, he also has to be relatively small

Weight - 143 lbs

Brawn - 5/10

At just the strength of a normal human, Satan is weaker than their twin, leading them to train near constantly in competition 

Brains - 6/10

Smarter than his twin, Satan both takes pride in this, and constantly trains mind to keep his higher intelligence 

Hustle - 6/10

Faster than his twin, Satan takes pride in training his speed to stay faster.

Guts - 5/10

Physically more fragile than Lucifer, Satan doesn't enjoy training this, letting this be the one weakness they're okay with having to Lucifer.

Charm - 5/10

Just halfway

Occult - 10/10

Being a prince of Hell, Satan is near entirely made of magic

Pride

Linked directly to the sin of Pride, though only half as strong as other sins, as he shares the link with Lucifer, Satan is unable to die of old age, or attack by most people, only able to be killed by Lucifer.

Teleportation

Able to teleport wherever summoned, Satan uses this to appear whenever they are needed, though they take Lucifer with them every time

Shapeshifting

Being a functionally immortal representation of Sin, Satan is able to Shapeshift to fit in more with whatever the dominant species of the time is.