The third couple of sets of the Summer of Heroes Campaign released the 20th July 2011. Unlike the previous two updates, this one comes along four instead of two sets. All of them go with a magical them, continuing the wacky path announced by David Simard. The alternative Inferno's Burning and Arcane's Mystic sets were only accessible in the new Supply Drops called Pandora's Box. Frost's Biting Staff, the Wizard's Mark and Bane's Toxic Cane were only available in these drops.