DRY 'Goblin' object has no attribute 'attack'

import random

from combat import Combat

COLORS = ['yellow', 'red', 'blue', 'green']


class Monster(Combat):
  min_hit_points = 1
  max_hit_points = 1
  min_experience = 1
  max_experience = 1
  weapons = 'axe'
  sound = 'rawr'
  def __init__(self, **kwargs):
    self.hit_points = random.randint(self.min_hit_points, self.max_hit_points)
    self.experience = random.randint(self.min_experience, self.max_experience)
    self.color = random.choice(COLORS)

    for key, value in kwargs.items():
      setattr(self, key, value)

  def __str__(self):
    return '{} {}, HP: {}, XP: {}'.format(self.color.title(),
                                          self.__class__.__name__,
                                          self.hit_points,
                                          self.experience)
  def battlecry(self):
      return self.sound.upper()

class Goblin(Monster):
  max_hit_points = 3
  max_experience = 2
  sound = 'squeak'

class Troll(Monster):
  min_hit_points = 3
  max_hit_points = 5
  min_experience = 2
  max_experience = 6
  sound = 'growl'

class Dragon(Monster):
  min_hit_points = 5
  max_hit_points = 10
  min_experience = 6
  max_experience = 10
  sound = 'raaaaaaaaar'

import random 

class Combat:
  dodge_limit = 6
  attack_limit = 6

  def dodge(self):
    roll = random.randint(1, self.dodge_limit)
    return roll > 4

  def attack(self):
    roll = random.randint(1, self.attack_limit)
    return roll > 4