His abilities to block Pokémon’s special ability that destroys some Pokémon’s makes him have a winning end. He not only controls Pokémon minds but also people’s mind. He can learn different moves which grant him greater coverage and his speed is the second fastest out of all Pokémon’s.
This one here is a humongous dragon who made the world of Pokémon in white and black. He is an electric and a dragon type, where electric has one weakness ground, and it destroys water and flying types.
While Dragon is able to resist fire, grass, water and electric these are strengths that make it the best in the game. Zekrom also has a very fast speed, and it can destroy a Dragon before the attacker can even attack it.