Led by the Manipulator, Halyn - an offworld overseer of the Test Reality, not a participant in the Competition - Halyn's Alliance is an odd case. It consists of the Tested who didn't become Oress Holders, each having already had their own powers to defend themselves with. Halyn picked them up prior to the Oresses being assigned and suggested an alliance to keep them from getting picked off by the others, to which they agreed. Though they seem like neutral territory - especially with their lighthearted personalities and casual responses to danger and the unknown - in truth they have an agreement with Umbra's Alliance. They won't harm each other's group until everyone else is dead, then it's alliance vs alliance.