Brutal Goblin

Vicious Assistance.  When the Goblin attacks a creature that has one of the Goblin's Allies within 5 ft, the Goblin deals an extra 7 (2d6) damage.

Attack Action. The Goblin can make one Melee or one Ranged attack on its turn

Melee Attack. Short-Spear: +5 to hit, reach 5 ft., 1 target. Hit: 6 (1d6 + 3) [piercing] damage. 

Ranged Attack. Short Bow: +5 to hit, range 90 ft., 1 target. Hit: 6 (1d6 + 3) [piercing] damage.

Bonus Action:  Friendly Cover. The Goblin can attempt to hide when obscured only by a creature that is at least one size larger. Its AC also increases by 2 when this action is taken.

Quick Step.  As a Reaction to a Bloated, Spindle Legged Giant's Deep Plie movement, the Goblin can move 5 ft (out from under the belly flop of the Giant) and then move back 5 ft back under the Giants belly as the Giant completes the action.  The Goblin does not provoke Opportunity attacks during this movement. It may also make one melee attack against an opponent knocked prone by the Giant's Deep Plie - Without advantage from the opponent being prone due to the quick nature of the attack. This Opportunity attack still gains the extra damage from Vicious Assistance if it hits.