Pokemon White 2/Cheats

[MagicApple]

Hey guys ,
first I want to say, that im completly new here and im sorry for everything,what I do wrong.
The second thing is, that my english is really bad, so I hope u'll understand me.

To my question:
I want to create a very good/perfect team. They have to be shiny, with 6x31 IV's,full EV's at lv 1 and the nature I want.
First I did the cheat, where I spawn a pokemon of my choice and the nature of it.
That happens without problems. And for 31 IV, EV and Shiny I placed them into the box and used the cheat, where you can mark the pokemon in box,which should become 31 IV, EV and Shiny.
But in the Box the pokemon transform to eggs
What did I do wrong and is there another encounter for my perfect team?
Ty for every answer

[umbra]

Hey guys ,
first I want to say, that im completly new here and im sorry for everything,what I do wrong.
The second thing is, that my english is really bad, so I hope u'll understand me.

To my question:
I want to create a very good/perfect team. They have to be shiny, with 6x31 IV's,full EV's at lv 1 and the nature I want.
First I did the cheat, where I spawn a pokemon of my choice and the nature of it.
That happens without problems. And for 31 IV, EV and Shiny I placed them into the box and used the cheat, where you can mark the pokemon in box,which should become 31 IV, EV and Shiny.
But in the Box the pokemon transform to eggs
What did I do wrong and is there another encounter for my perfect team?
Ty for every answer

Did you mark Egg Hatch? I have Pokemon White 2 too, so, select the option Pokemon Marking Codes and select everything except Egg Match and Superstar Pokemon, then put your pokemons in a box and then just mark them. Nothing has to happen just that maybe, after you mark them, they can change the sex, only that.