These are kinda easy to steal from.

Make sure you are on split screen.

Then go to their spawn.

Make player 1 take the egg an make him/her run.

Now as the host player you need to die.

Respawn at base (if it’s far from the mag spawn.)

And player 1 will get teleported along with host player.

Make sure you spawn far enough if not player 1 can get dragged and die if near mountain.

Once you have egg let it hatch.

Enjoy!