The number of DC Comics Lantern Corps varies depending on the storylines and continuities. But typically, you'll come across at least seven major ones like the Green, Red, Blue, Yellow, Orange, Indigo, and White Lantern Corps, each with its own unique characteristics and powers.
Black Canary is a key figure in the DC universe. She's a skilled fighter and her sonic scream is a unique ability that gives her an edge in battles. She's often associated with the Justice League and other superhero teams.
Black Adam is a complex character in DC Comics. He was originally bestowed with powers by the Egyptian gods but has had a tumultuous history, often clashing with heroes. His motivations and actions can be both noble and vengeful.