As we all know, goblins have a natural cunning for everything related to War and machines. But is also known that goblins are quite lazy, and if they can avoid building something, they will. As they usually say: "keep it zimple" and when that doesn't work, then "uze more ogre". This is the goblin ziege ram/ziege tower.
(from Instagram´s DungeonDrawingDelve 2020")