Is it Possible to Bring back a Destroyed GameObject?

Lets say I destroy a gameObject in a level (when I kill the enemy)

Is it possible to bring back that same gameObject or a copy of it with the same stats as the original or the original itself (such as re spawning?)

Currently I am trying to make my level reset with only slight differences if the player buys upgrades so for that I need the enemies to respawn is this possible?

should I avoid destroying the game Objects?

Thanks

You might try just deactivating it, and/or put it on a different layer (hidden) and/or put it on a 'graveyard' list which would actually be destroyed when you really don't need it.

Try using Prefabs. You can destroy them and then instantiate exact copies.

Lets say I destroy a gameObject in a level (when I kill the enemy)

Is it possible to bring back that same gameObject or a copy of it with the same stats as the original or the original itself (such as re spawning?)

You can't (as far as I know) "undo" a destroy and have internal state intact without having to write your own code that safe-keeps state. You can probably also kiss coroutines goodbye if you need that explicit control since I don't know of any way to restore coroutine internal state.

I think the best bet is to spawn prefabs and ignore loss of state (per ronins suggestion) or put objects in a graveyard list (per daves suggestion).

Since you're reseting mid-game events I guess you'd want to go with the graveyard idea or write some sort of object state manager, but that can become quite complex and may put serious constraints on the remainder of your architecture.