I would like some feedback on my script

import os
import random
import sys

version = '\n Harry Potter duel V0.1'

enter = "\n Press Enter to start the duel !"

miss_spell = (0, 1, 2, 4)

decor = ' ==========================='

believe = " Remember Harry ! if you don't truly believe that you can do it your spell won't work ! BELIEVE HARRY !!!"

missed_spells = 0

spell_check = -1

motivational_quotes_0 = [' Hold on Harry your parents are in your side !!', ' Harry this is it keep going !!']
motivational_quotes_1 = [' Destroy him once and for all !!', ' Your mother and father would be proud..']

random_motiv = [0, 1]

duel_sp = """\n
 1. Avada Kedavra
 2. Vasanous
 3. Crucio
"""
                                        #Make a door fall on harry, if spell != alonhamora then exit the game, and other situations with situational spells
situational_sp = """\n
 4. Arresto Momentum
 5. Aqua Eructo
 6. Arania Exumai
"""
                                        #Refactor the code
                                        #Find something fun to add !
spell_list = """
 DUEL Spells: {}
 SITUATIONAL Spells: {}
""".format(duel_sp, situational_sp)

harry_potter = 20
voldemord = 25

def clear():
    os.system("cls" if os.name == "nt" else "clear")

def intro():
    clear()
    print(version)
    print("\n Harry's Life Points: {}".format(harry_potter))
    print(decor + "\n Voldemord's Life Points: {}\n".format(voldemord))
    print(" You are the famous Harry Potter and you are about to duel your\n destined enemy to death, his name is 'You know who..'")
    print(" Remember Harry ! if you don't truly believe that you can do it\n your spell won't work ! BELIEVE HARRY !!!")
    print("\n\n\n 'Hold your wands, because this is about to become as hard as trying to avoid a bludger ball in a quidditch game !'")
    input(enter + ' > ')
    spell_duel()

def spell_duel():

    global spell_check
    global missed_spells
    global voldemord
    clear()
    print(version)
    print("\n Harry's Life Points: {}".format(harry_potter))
    print(decor + "\n Voldemord's Life Points: {}".format(voldemord))
    print(spell_list)

    if spell_check != missed_spells - 1:
        spell_check += 1
        print(believe)

    print(' Type the number before the spell to use it !')

    spell = int(input('\n > '))

    if isinstance(spell, int):

        if random.choice(miss_spell) == 1:
            missed_spells += 1
            print("\n You missed your spell Harry !! BELIEVE in yourself, I believe in you, only you can do it.. END HIS MISERY !!!")
            print("\n It's voldemords turn now, press Enter to continue > ")
            voldemords_turn()
            spell_duel()
        else:

            the_word = ''

            for x in [1]:

                if random.choice(random_motiv) == 0:
                    the_word = random.choice(motivational_quotes_0)
                else:
                    the_word = random.choice(motivational_quotes_1)

            if spell == 1:

                print("\n AVADA KEDAVRA!!")
                print('\n' + the_word)
                hit = 7
                voldemord -= 7
                print(' Voldemord lost {} points'.format(hit))
                voldemords_turn()
                spell_duel()

            if spell == 2:

                print("\n VASANOUS!!")
                print('\n' + the_word)
                hit = 5
                voldemord -= 5
                print(' Voldemord lost {} points'.format(hit))
                voldemords_turn()
                spell_duel()

            if spell == 3:
                print("\n CRUCIOO!!")
                print('\n' + the_word)
                hit = 5
                voldemord -= 5
                print(' Voldemord lost {} points'.format(voldemord))
                voldemords_turn()
                spell_duel()


    else:
        print(" You should put a spell that is available on your spell book !")
        input(enter)
        spell_duel()

def voldemords_turn():

    global harry_potter
    spell_dmg = random.choice([6, 7, 8])
    print("\n VOLDEMORD: 'AAVADA KEDAVRA'\n Voldemord has striked you back successfully, you lost {} life points !".format(spell_dmg))
    harry_potter -= spell_dmg
    input("\n > ")

    if random.choice([0, 1, 2]) == 1:
        print("\n Your mother's love protected you once again.. she absorbed 4 hit point from voldemords spell !")
        print("\n VOLDEMORD: Mother's love, disgusting.. next time you shall not be spared !") 
        input("\n Press Enter to return to the duel > ")
        harry_potter += 4

    if harry_potter < 1:
        clear()
        print(version)
        print("\n Harry's Life Points: {}".format(harry_potter))
        print(decor + "\n Voldemord's Life Points: {}".format(voldemord))
        print("\n You didn't believe enough in yourself Harry... there is no second chances.. ('except if you restart the game manually hehehe')")
        input("\n Press Enter to exit the game > ")
        sys.exit()

if __name__ == '__main__':
    intro()