Как вызвать событие передающее само себя?

public static Func <int, Func<int, bool>, bool> MyFunc;

MyFunc?.Invoke(index, MyFunc);

MyFunc?.Invoke(index, i => i>=3 && i<=9);

bool Check(int i) => i>=3 && i<=9;
MyFunc?.Invoke(index, Check);

    Action<int, Delegate> someDelegate = (num, dl) =>
    {
        WriteLine(num);
        num--;
        if (num < 0)
            return;
        Action<int, Delegate> action = (Action<int, Delegate>) dl;
        action(num, dl);
    };
 
    someDelegate(5, someDelegate);

public enum ActionType 
{ 
    ToOpenDoor
}
 
public class Player
{
    public event Action<ActionType> OnAction;
 
    public int Health { get; private set; }
 
    public void Damage(int val) 
    {
        Health -= val;
    }
 
    public void ToOpenDoor()
    {
        OnAction?.Invoke(ActionType.ToOpenDoor);
    }
}
 
public class Trap
{
    Player player;
 
    public Trap(Player player)
    {
        this.player = player;
        player.OnAction += TriggerAction;
    }
 
    private void TriggerAction(ActionType actionType)
    {
        if(actionType == ActionType.ToOpenDoor)
            player.Damage(10);
    }
 
}