[learning][2d Platform] How Do I Create A Spawner That Spawns New Monster After The Initial Death?

Hi,
I searched the net and the only one I found tutorials that spawn monsters at random time infinitely. Can anyone help me with the formula on how to create a spawner that spawns enemies after the 1st enemy dies, please?
EX:

  1. Spawns 1st monster
  2. The enemy object gets destroyed (atm. Still figuring out how my player can attack enemies)
  3. Spawner spawns the same monster after a set delay time
    Link To my Project.
    GitHub - Unity3D-Ket/FoxFight

Is this the right place to ask these kind of questions?

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