Animated rule tile with trigger event

Ive created a tall clump of grass which shifts like someone disturbed it. what I want is to have it in idle mode then trigger it to animate when someone triggers its collider. I set this up as a prefab and it works when i put together a bunch of prefabs yet i want to put this prefab into a rule tile to use it in a tile palette. So far ive gotten to the point of absolutely nothing working so thats to say im at square 0 on this one.

the collider2D is on the prefab as well as the script which tells the controller to trigger the animation.
When i add a tilecollider to the grid i can see the collider2d on the prefabs but they dont do anything

my script

public class movegrass : MonoBehaviour
{
    private Animator myAnim;

    private void Start()
    {
        myAnim = gameObject.GetComponent<Animator>();
    }
    void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.name == "Player")
        {
            myAnim.SetTrigger("Grass");
        }
    }
}

You should compare strings with Equals() instead of ==

So line 11 should be

if (collision.name.Equals("Player"))