Cloak: Born a mutant, Tyrone Johnson's powers were altered by an experimental drug which granted him a connection to the mysterious Darkforce Dimension. As Cloak, he can control shadows and even teleport himself and others!
Dagger: Enhanced by the same experimental drug that created Cloak, Tandy Bowen became Dagger and discovered she could construct fantastic blades of light, generate purifying energy and safely travel through Cloak's dimensional rift.