Rotating object relative to player to orient it center of camera regardless of direction.

So as you see in the code below I am creating an instance of a game object, It appears in front of the players position upon button pressDown and is destroyed on button pressUP. Currently it appears "in front" of the player based on the position the player is standing in on testing the scene. It sticks there and does not rotate with the mouse as I want it to. I tried using AngleAxis with the players current direction angle as the angle and the players current position as the axis however this only allows the game object to rotate fixed in space in front of the player. I'm not very experienced with trigonometry and so I'm lost as to why it doesn't work the way I want it to, in my head it makes sense!

 using UnityEngine;
 using System.Collections;
 
 public class playerControl : MonoBehaviour {
 
     //Movement
     public float moveSpeed;
     public Camera myCamera;
     private float rotationY = 0.0f;
 
     public float mouseXspeed = 1.0f;
     public float mouseYspeed = 1.0f;
 
     //Boost
 
     public float boostSpeed = 0.10f;
 
     //Jumping 
     private bool onFloor = false;
     public float jumpForce;
     public Rigidbody rb;
 
     //Raycasting
 
     //Reference to the camera already exists at myCamera
     Transform camTran; //Referance to the camera Transform
     RaycastHit hit = new RaycastHit();
 
     //Casting state
     private bool castingMode = false;
     public string castState = "off";
 
     //Casting interface control
     
     //public Transform intPos;
     public GameObject castINT;
     Vector3 localOffset = new Vector3(0.6f,0,0);
 
     Vector3 playerLoc = new Vector3(0,0,0);
     private float playerCurretnEuler;
 
 
 
 
 
 
 
 
     // Use this for initialization
     void Start () {
 
     
         Cursor.visible = false;
 
         //Settging camTran
         camTran = myCamera.transform;
     
     }
     
     // Update is called once per frame
     void Update () {
 
         playerLoc = transform.position;
 
         playerCurretnEuler = this.transform.localEulerAngles.y;
 
         Debug.Log (playerCurretnEuler);
 
         // Player Movement
         if (Input.GetKey (KeyCode.W)) {
 
 
             this.transform.Translate(Vector3.forward * Time.deltaTime * moveSpeed);
 
         }
         if (Input.GetKey (KeyCode.A) && onFloor == true) {
             
 
             this.transform.Translate(Vector3.left * Time.deltaTime * moveSpeed);
             
         }
         if (Input.GetKey (KeyCode.S) && onFloor == true) {
             
 
             this.transform.Translate(Vector3.back * Time.deltaTime * moveSpeed);
             
         }
         if (Input.GetKey (KeyCode.D) && onFloor == true) {
             
 
             this.transform.Translate(Vector3.right * Time.deltaTime * moveSpeed);
             
         }
 
 
 
         if(Input.GetKeyDown(KeyCode.C)){
             castingMode = true;
             Cursor.visible = true;
             castState = "on";
 
 
             GameObject mycastINT = Instantiate(castINT);
 
             GameObject intParent = GameObject.Find("mainCamera");
             mycastINT.transform.parent = intParent.transform;
             mycastINT.transform.rotation = Quaternion.AngleAxis(playerCurretnEuler, playerLoc);
             mycastINT.transform.position = intParent.transform.position + localOffset;
 
         
 
         }
         if(Input.GetKeyUp(KeyCode.C)){
             castingMode = false;
             Cursor.visible = false;
             castState = "off";
 
             //Accessing casting Script to remove it from play
             GameObject castInt = GameObject.Find("castInterface(Clone)");
             castInterface castScript = castInt.GetComponent("castInterface") as castInterface;
             castScript.removeSelf();
 
         }
 
         //Boosting Control
 
         //Boost On
         if (Input.GetKeyDown(KeyCode.LeftShift)) {
 
             moveSpeed = moveSpeed +boostSpeed;
 
         }
         //Boost off
         if (Input.GetKeyUp(KeyCode.LeftShift)) {
             
             moveSpeed = moveSpeed -boostSpeed;
             
         }
 
         if (castingMode == false) {
 
             //Player Looking
 
             float rotationX = Input.GetAxis ("Mouse X");
             this.transform.Rotate (0.0f, rotationX * mouseXspeed, 0.0f);
 
 
 
             if (rotationY > -85.0f && rotationY < 85.0f) {
 
                 rotationY += Input.GetAxis ("Mouse Y") * mouseYspeed;
 
                 myCamera.transform.localEulerAngles = new Vector3 (Mathf.Clamp (-rotationY, -85.0f, 85.0f), myCamera.transform.localEulerAngles.y, 0.0f);
 
             }
 
             if (rotationY < -84.0f) {
                 rotationY = -83.5f;
             }
             if (rotationY > 84.0f) {    
                 rotationY = 83.5f;
             }
 
 
         }
         //Jumping 
 
         if (Input.GetKeyDown(KeyCode.Space) && onFloor == true) {
             rb.AddForce(transform.up * jumpForce);
 
         }
 
         //Raycasting
 
         Ray ray = new Ray (camTran.position, camTran.forward);
 
         if (Physics.Raycast (ray, out hit, 3)) {
 
             if(hit.collider.name == "Door"){
                 if(Input.GetMouseButtonDown(0)){
                     GameObject theDoor = hit.collider.gameObject;
                     doorControl doorScript = theDoor.GetComponent("doorControl") as doorControl;
                     doorScript.clickOnDoor();
 
 
                 }
 
 
             }
 
         }
     
     
     }
 
 
 
     void OnCollisionEnter(Collision col){
 
 
 
         if (col.transform.tag == "floor") {
             onFloor = true;
 
         }
 
 
     }
 
     void OnCollisionExit(Collision col){
 
 
 
         if (col.transform.tag == "floor") {
             onFloor = false;
             
         }
 
     }
 
     void OnTriggerEnter(Collider col){
         
         if (col.transform.name == "collect") {
             Destroy(col.gameObject);
             
         }
 
 
     }
 
 
 }
 

Thanks for any help you can offer!