public bool Check(Hero hero)
        {
            var killHistory = hero.GetKillHistory();

            return(killHistory.Count() >= 5);
        }
        public bool Check(Hero hero)
        {
            var killHistory = hero.GetKillHistory();

            return(killHistory.Sum(p => p.KillCount) >= 3);
        }
        public bool Check(Hero hero)
        {
            var killHistory = hero.GetKillHistory();

            return(killHistory.Any());
        }