How to make all enemies attack after spawning? Not only 1.

Here is the chase script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Chase : $$anonymous$$onoBehaviour {
 
     public Transform player;
     static Animator anim;
 
     // Use this for initialization
     void Start ()
     {
         anim = GetComponent<Animator>();
     }
     
     // Update is called once per frame
     void Update ()
     {
     
         if(Vector3.Distance(player.position, this.transform.position) <2000)
         {
             Vector3 direction = player.position - this.transform.position;
             direction.y = 0;
 
             this.transform.rotation = Quaternion.Slerp(this.transform.rotation, Quaternion.LookRotation(direction), 0.1f);
 
             anim.SetBool("isIdle",false);
             if(direction.magnitude > 2)
             {
                 this.transform.Translate(0, 0, 0.05f);
                 anim.SetBool("isWalking",true);
                 anim.SetBool("isAttacking",false);
             }
             else
             {
                 anim.SetBool("isAttacking",true);
                 anim.SetBool("isWalking",false);
             }
 
         }
         else
         {
             anim.SetBool("isIdle", true);
             anim.SetBool("isWalking", false);
             anim.SetBool("isAttacking", false);
         }
     }
 }

Here is the spawner script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Spawner : $$anonymous$$onoBehaviour
 {
     public Transform[] spawnLocations;
     public GameObject[] whatToSpawnPrefab;
     public GameObject[] whatToSpawnClone;
 
     // Use this for initialization
     void Start ()
     {
         Spawn();
     }
     
     // Update is called once per frame
     void Spawn ()
     {
         whatToSpawnClone[0] = Instantiate(whatToSpawnPrefab[0], spawnLocations[0].transform.position, Quaternion.Euler(0, 0, 0)) as GameObject;
         whatToSpawnClone[1] = Instantiate(whatToSpawnPrefab[1], spawnLocations[1].transform.position, Quaternion.Euler(0, 0, 0)) as GameObject;
         whatToSpawnClone[2] = Instantiate(whatToSpawnPrefab[2], spawnLocations[2].transform.position, Quaternion.Euler(0, 0, 0)) as GameObject;
     }
 }