How can I randomly assign powers to my heroes?

I’m creating a hero game. I’ve created a dictionary containing magic powers, my problem is how can I create a method that will randomly assign 12 magic powers to 4 of my heroes (each hero get’s 3 powers) without one magic power being assigned multiple times?
Here’s my code:

import random
class Heroes:
    def __init__(self,name,type,magic,health):
        self.name = name
        self.type = type
        self.magic = magic
        self.health = health

class Stats:
    def __init__(self,hero):
        self.hero = hero

    def magic(self):
        magic_powers = {1: {'Name': 'Apparition', 'Damage': 10},
                  2: {'Name': 'Astral Spirit', 'Damage': 15},
                  3: {'Name': 'Dawnbreaker', 'Damage': 20},
                  4: {'Name': 'Solar Guardian Land', 'Damage': 25},
                  5: {'Name': 'Pulse Nova', 'Damage': 30},
                  6: {'Name': 'Lifestealer', 'Damage': 35},
                  7: {'Name': 'Medusa', 'Damage': 40},
                  8: {'Name': 'Tree Dance', 'Damage': 45},
                  9: {'Name': 'Assassin', 'Damage': 50},
                  10: {'Name': 'Psionic', 'Damage': 55},
                  11: {'Name': 'Mine', 'Damage': 60},
                  12: {'Name': 'Templar', 'Damage': 65}}
        print(random.choice(magic_powers))

hero1=Heroes('Gandalf','Wizard', '?', 500)
hero2=Heroes('Gandalf','Wizard', '?', 500)
hero3=Heroes('Gandalf','Wizard', '?', 500)
hero4=Heroes('Gandalf','Wizard', '?', 500)
heroes=Heroes(hero1,hero2,hero3,hero4)
stats = Stats(heroes)
magic_powers=stats.magic()

>Solution :

This goes through the set of 12, and if you ask for more, it will reshuffle them again.

import random

class Heroes:
    def __init__(self,name,type,magic,health):
        self.name = name
        self.type = type
        self.magic = magic
        self.health = health

class Stats:
    magic_powers = {1: {'Name': 'Apparition', 'Damage': 10},
              2: {'Name': 'Astral Spirit', 'Damage': 15},
              3: {'Name': 'Dawnbreaker', 'Damage': 20},
              4: {'Name': 'Solar Guardian Land', 'Damage': 25},
              5: {'Name': 'Pulse Nova', 'Damage': 30},
              6: {'Name': 'Lifestealer', 'Damage': 35},
              7: {'Name': 'Medusa', 'Damage': 40},
              8: {'Name': 'Tree Dance', 'Damage': 45},
              9: {'Name': 'Assassin', 'Damage': 50},
              10: {'Name': 'Psionic', 'Damage': 55},
              11: {'Name': 'Mine', 'Damage': 60},
              12: {'Name': 'Templar', 'Damage': 65}}

    def __init__(self,hero):
        self.hero = hero
        self.powers = None

    def magic(self):
        if not self.powers:
            self.powers = list(range(1,13))
            random.shuffle(self.powers)
        return self.powers.pop(0)

hero1=Heroes('Gandalf','Wizard', '?', 500)
hero2=Heroes('Gandalf','Wizard', '?', 500)
hero3=Heroes('Gandalf','Wizard', '?', 500)
hero4=Heroes('Gandalf','Wizard', '?', 500)
heroes=Heroes(hero1,hero2,hero3,hero4)
stats = Stats(heroes)

print( stats.magic() )
print( stats.magic() )
print( stats.magic() )