public static byte[] giveKilling(int x) {
        MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();

        mplew.writeShort(SendPacketOpcode.GIVE_BUFF.getValue());
        PacketHelper.writeSingleMask(mplew, MapleBuffStat.KILL_COUNT);
//        mplew.writeInt(0);
//        mplew.write(0);
//        mplew.writeInt(x);
//        mplew.writeZeroBytes(6);
        mplew.writeShort(0);
        mplew.write(0);
        mplew.writeInt(x);
        return mplew.getPacket();
    }