Goblin is a Grimoire card from the original Destiny (Destiny 1), found under Enemies → Vex. Grimoire cards held most of the game's lore and were read on Bungie.net and in the companion app, not in the game itself.
Card text
The Goblin is the basic unit in the vast computational network that is the Vex. Shattering the large, fan-shaped head does not seem to cause lasting damage but sends the Goblin into a crackling frenzy.
Grimoire text written by Bungie, shown as it appears in the Destiny 1 game files.