Black Wizards of Dark Nature

The Black Wizards of Dark Nature are the main antagonists of the third season of Sonic Boom series.

Members of the Dark Nature
Ulric - An anthropomorphic wolf who is the leader and has the power to absorb any attack that makes him stronger.

Ebony - An anthropomorphic cat with a calm demeanor, very seductive to manipulate her enemies, and has the power is darkness, manipulation, and illusions.

Brute - An anthropomorphic bull who is the most aggressive, loud, wild, and brutal, but sometimes he's not bright and is a prone to be impulsive and has the power of super brute strength.

Lina - An anthropomorphic wolf who is a witch and spy who has the powers of dark magic and witchcraft. In Episode 17, it is revealed that the Black Wizards are using her as a mere tool that she sided with Team Sonic and Shadow.

Sonata - An anthropomorphic squirrel who is the technician of the Black Wizards and has the power of technology manipulation and sound and seismic waves with her teal pendant.

Drums - An anthropomorphic salamander who is the clairvoyant of the Black Wizards, gives the Black Wizards information with his cauldron, and has the power of shapeshifting.

Captain Claw - An anthropomorphic vulture who is a pirate captain of his crew and has the power of storm and water manipulation.

Katana - An anthropomorphic panther who is a mysterious ninja, a replacement of Lina, and has the power of super speed.

Shadow the Hedgehog
The Black Wizards are arch-enemies with Shadow since he is suspicious of Lina. Even when Shadow is alone, the Black Wizards are too strong for him to defeat.

Dr. Eggman
Upon their first meeting, Eggman is briefly interested in the Black Wizards and asked them if they can work together to defeat Sonic, which becomes forgotten when Ulric turns him down and explains that they all work alone without any buffoons like him before attacking him.

Trivia

 * Unlike the other villains, the Black Wizards don't have any comical moments, making them the most dangerous and serious threats in Sonic Boom.