Giant spiders, as their name indicated, were an enormous version of regular Spiders. They had a variety of phenotypes, with no singular distinctive appearance; even in size, they could range from a small Dog to a Draft Horse. In addition to their appearances, their habits, environments, and level of threat all varied greatly.
Giant spiders could attack in a variety of ways, typically whatever way their normal counterparts could. Some spun huge webs that prey easily stumbled into, while others spat a deadly poison. Some were capable of walking on ceilings, while others were not. Despite the differences between the types of giant spiders, all were formidable opponents and certainly not foes for any arachnophobes to face.