These little Goblins look wild and dangerous to know! It reminds me also of the game 'Conkers' that we used to play in far off school-days days (before health and safety) using chestnuts on a piece of string/shoe-lace to batter ('conk') an opponent's conker.
These Goblins appear to be equipped with super-hard conkers....
Lucky they are only around 25mm high then