Traceback (most recent call last):
  File "test.py", line 32, in <module>
    invoker = Hero("Invoker")
  File "test.py", line 14, in __init__
    Alive.__init__(self)
  File "test.py", line 9, in __init__
    self.id = totalId + 1
UnboundLocalError: local variable 'totalId' referenced before assignment

import random

totalId = -1

class Alive:
    def __init__(self):
        teams = ["Honor", "BlackLoop"]
        self.team = random.choice(teams)
        self.id = totalId + 1
        totalId = totalId + 1

class Hero(Alive):
    def __init__(self, name = "default", lvl = 1):
        Alive.__init__(self)
        self.lvl = lvl
        self.name = name

    def lvlUp(self, count = 1):
        self.lvl = self.lvl + count

    def getInfo(self):
        print(f"{'*' * 20}nId_{self.id}nName: {self.name}nTeam: {self.team}nLevel: {self.lvl}n{'*' * 20}nn")

class Soldier(Alive):
    def followTheHero(self):
        pass

if __name__ == "__main__":
    honor = []
    blackloop = []

    invoker = Hero("Invoker")
    void = Hero("Void")

    invoker.getInfo()
    void.getInfo()

class Alive:
    def __init__(self):
        global totalId                       ##### нужно добавить #####
        teams = ["Honor", "BlackLoop"]
        self.team = random.choice(teams)
        self.id = totalId + 1
        totalId = totalId + 1

class Alive:

    total_id = -1

    def __init__(self):
        teams = ["Honor", "BlackLoop"]
        self.team = random.choice(teams)
        Alive.total_id += 1
        self.id = Alive.total_id