@Override
	public void run(Player player, String params) {
		Sphere sphere = new Sphere(player.getLocation(), 20);
		List<Entity> entities = player.getNearbyEntities(20, 20, 20);
		for(Entity entity : entities) {
			if(sphere.contains(entity.getLocation()) && entity instanceof LivingEntity) {
				((LivingEntity)entity).addPotionEffect(new PotionEffect(PotionEffectType.BLINDNESS, 20 * 120, 1)); //lasts 2 mins
			}
		}
	}