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?.