What episode is the My Hero Academia anime where Watanabe introduces himself?

In the 65th episode of the anime, the members of the Enemy Alliance finally appeared. When they appeared, they did not forget to introduce their names and personalities to us, and Watanabe was the enemy alliance. one of the members. Wataka's personality was also announced in the third season, which is transformation. As long as you get the other person's blood, you can become the other person.