General Danknuck was a high ranked goblin, and lead the final attempt on the invasion on Falador. He could only be harmed with an event rpg, and had similar drops to Painted Goblins, albeit in higher quantities. He was removed from the game at the end of the event.
Drops
Item Quantity Rarity GE market price Skull (item) 9 Common Not sold Toad's legs 16 Common 8,208 Pure essence 50 Common 100 Eye of newt 20 Common 80 Snape grass 30 Common 8,130 Grapes 20 Common 1,460 Swamp tar 20 Common 240 Plank 40 Common 16,960 Teak plank 25 Uncommon 24,175 Mahogany plank 15 Rare 31,650