Python - Text Game Project Pt 1

import random

class Character(object):
    def __init__(self, name, level):
        self.name = name
        self.level = level
        self.health = int(level + 5 ** 2) # if level is'nt number this will throw

    def damage(self, attack):
        self.health -= attack
        if self.health <= 0:
           print("%s has died!" % self.name)
        else:
           print("%s has lost %i health!" % (self.name, attack))
    def attack(self):
        attack = self.level/4 * 1.5
        return attack

vilan = Character("Megaman", 13) # :)
hero = Character("Metroman", 20)

hero.damage(vilan.attack())
vilan.damage(8) # ;)
vilan.damage(20)
input() #wait here