There are many characters in anime are very strong, even so strong make other characters look weak. Here's a list of overpowerful anime characters (Yuusha Version) :

10 . Uchiha Madara (Naruto)

09 . Koro Sensei (Assasination Classroom)

08 . Sakata Gintoki (Gintama)

07 . Monkey D Luffy (One Piece)

06 . Goku (Dragon Ball)

05 . Arale Norimaki (Dr. Slump & Arale | Dragon Ball)

04 . Kageyama Shigeo A.K.A Mob (Mob Psycho 100)

03 . All Might (My Hero Academia)

02 . Kaguya Otsutsuki (Naruto Shippuden)

01 . Saitama (One Punch Man)

That's some characters of anime overpowerful, maybe anyone want to add?.