They are a couple.
Hero name: Halo
Power: Telepathy/ Mind Control
Control somebody to do something, communicating with somebody else through their/your mind.
Hero name: Ques
Power: Shapeshifter
Could become somebody else, spy, get secrets out of anybody.
Hero name: Mercy
Power: Element Manipulation
Can manipulate wind, earth, fire, water, plus make changes to the environment depending on your mood. Also she is Heavens foster sister, they both live together.