Your Dexterity score increases by 2, and your Wisdom score increases by 1.

Elves are known to be a particularly long lived race, who age slowly and take centuries to reach full adulthood. Meanwhile Goblins, at the opposite end of the spectrum, grow up fast and do not live particularly long. As a bridge between these two races, you mature at the same rate as a human, and live a bit longer than one, to about 200. 

Depending on whether you take more after your mother or father, you can choose for your size to be either small or medium. Note, a small size can come with drawbacks, such as wielding certain weapons and grappling, but on the other side, small creatures are better at hiding and can move more easily around the battlefield. 

Being raised by your father with other Wood Elves, you’ve learned their tactics of moving quickly over forested and rough terrain. Your movement speed is 35ft.

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.

You can take the Disengage or Hide action as a bonus action on each of your turns. This stacks with your Mask of the Wild ability.

You can attempt to Hide even when you are only lightly obscured by foliage, heavy rain, falling snow, mist, or other natural phenomena.

Unlike a full blooded elf, you need sleep and are unable to enter into their semi-conscious trance-like state. You must sleep, fully unconscious  like a Goblin, but you only require 4 hours of sleep to gain the benefits of a full 8-hour long rest.

You have proficiency with the longsword, shortsword, shortbow, and longbow.

You speak Common and Elvish. 

You may also speak Goblin, but you decide if, and  the extent to which, you’ve tried to go out of your way and connect to your Goblin side to learn the language, since your mother wasn’t around to teach it to you.