public static ArrayList<String> hasShard = new ArrayList<String>();

@EventHandler
public void death(PlayerDeathEvent e){
	Player player = e.getPlayer();
	Player killer = player.getKiller();

	hasShard.add(killer.getName());

	if(hasShard.contains(player.getName())){
	e.getDrops().clear();
	World world = player.getWorld();

	ItemStack shard = new ItemStack(Material.NETHER_STAR);
	ItemMeta shardmeta = shard.getItemMeta();
	shardmeta.setDisplayName(ChatColor.GREEN + "Shard");
	shard.setItemMeta(shardmeta);

	world.spawnItemNaturally(player.getLoction(), shard);
	hasShards.remove(player.getName());
	}else{
	e.getDrops().clear();
	}
}