Rotate and eulerAngles don't work together ??

Hi ! I've encountered an error when changing rotation into Rotate in front of euler angles

 var Statue : GameObject;
 
 var MinClamp1 = 0f;
 var MaxClamp1 = 90f;
 var MinClamp2 = 90f;
 var MaxClamp2 = 180f;
 var MinClamp3 = 180f;
 var MaxClamp3 = 270f;
 var MinClamp4 = 270f;
 var MaxClamp4 = 360f;
 var RotationLimit = 0;
 function Update () {
 if (Statue.transform.rotation.y > 360){
 Statue.transform.rotation.y = 0;
 }
 if (RotationLimit == 4){
 RotationLimit = 0;
 }
 }
 
 
 function OnTriggerStay(other : Collider){
 if (other.gameObject.tag == "Boite" && RotationLimit == 0){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp1, MaxClamp1),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 1){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp2, MaxClamp2),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 2){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp3, MaxClamp3),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 3){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp4, MaxClamp4),
           Statue.transform.rotation.eulerAngles.z);
           }
 }
 function OnTriggerExit(other : Collider){
 ++RotationLimit;
 }

it works , but I'd like to make it rotate slowly like using Rotate instead of rotation , how should I do ?