Darkvision. Accustomed to twilit forests and the night sky, you have superior vision in dark and dim conditions. 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.
Fey Ancestry. You have advantage on saving throws against being charmed, and magic can't put you to sleep.
Trance. Elves do not sleep. Instead they meditate deeply, remaining semi-conscious, for 4 hours a day. The Common word for this meditation is "trance." While meditating, you dream after a fashion; such dreams are actually mental exercises that have become reflexive after years of practice. After resting in this way, you gain the same benefit a human would from 8 hours of sleep.
Fleet of Foot. Your base walking speed increases to 35 feet.
Mask of the Wild. You can attempt to hide even when you are only lightly obscured by foliage, heavy rain, falling snow, mist, and other natural phenomena.
Specialty. Scout
Military Rank. You have a military rank from your career as a soldier. Soldiers loyal to your former military organization still recognize your authority and influence, and they defer to you if they are of a lower rank. You can invoke your rank to exert influence over other soldiers and requisition simple equipment or horses for temporary use. You can also usually gain access to friendly military encampments and fortresses where your rank is recognized.
Sneak Attack. You know how to strike subtly and exploit a foe's distraction. Once per turn, you can deal an extra 1d6 damage to one creature you hit with an attack if you have advantage on the attack roll. The attack must use a finesse or a ranged weapon.
You don't need advantage on the attack roll if another enemy of the target is within 5 feet of it, that enemy isn't incapacitated, and you don't have disadvantage on the attack roll.
Thieves' Cant. During your rogue training you learned thieves' cant, a secret mix of dialect, jargon, and code that allows you to hide messages in seemingly normal conversation. Only another creature that knows thieves' cant understands such messages. It takes four times longer to convey such a message than it does to speak the same idea plainly.
In addition, you understand a set of secret signs and symbols used to convey short, simple messages, such as whether an area is dangerous or the territory of a thieves' guild, whether loot is nearby, or whether the people in an area are easy marks or will provide a safe house for thieves on the run.

See equipment tab

I've lost too many friends, and I'm slow to make new ones.

Independence. When people follow orders blindly, they embrace a kind of tyranny. (Chaotic)

I fight for those who cannot fight for themselves.

I'd rather eat my armor than admit when I'm wrong.