The sporecap spider is a spider that is so slow-moving that it has mushrooms and various mosses and lichens growing on it. Its web is so sticky and strong that it doesn't have to rush in to wrap up its prey like normal spiders do. It can just hang out and slowly amble over when it's darn good and hungry.
"They don't move much, but then again, if you get caught in its web, it has all the time in the world to get to you." -Saidah, Joraga hunter