+2 Dex, +1 Wis, -1 Str
Small: +1 AC, -4 to Special Attacks, +4 to Hide, x½ Carrying Capacity
Naturally Stealthy: You can attempt to hide even when you are obscured only by a creature that is at least one size larger than you.
Born Thief: You are Proficient in the Sleight of Hand skill.
Ankle Biter: When you damage a creature with an attack or a spell and the creature's size is larger than yours, you can cause the attack or spell to deal extra damage to the creature. The extra damage equals 1d6 + your Dex modifier; this increases to 2d6 at 6th Level, 3d6 at 12th Level and 4d6 at 18th Level. Once you use this trait, you can't use it again until you finish a short or long rest.
Nimble Escape: You can take the Disengage or Hide action as a bonus action on each of your turns.
Cowardly: Goblins are aggressive but will turn and run at the slightest sign of real danger. You have Disadvantage to all rolls to resist being Frightened. When applying to NPC Goblins, if the numbers of the group they are fighting in is reduced to half, they must make a test to resist being Frightened at Disadvantage.
Crash Landing: You can fall twice as far before receiving fall damage.
Tag-In: Once per short rest, you can grant an extra attack to an ally if they are attacking the same target as you.
Goblin Tactics: As a reaction to being missed by an enemy melee attack, you can shift diagonally to immediately beside them. Until the end of your next turn, you have Advantage on attacks against the enemy who triggered this ability.
Climber: You have a Climb speed of 25 feet if you are not encumbered or wearing either medium armor or heavy armor.
Hit ‘Em with Anything!: You have +2 to all small and medium non-magical melee weapons and all unarmed attacks.