Problem with training with slimes

[Genom]

Well, I have a problem in practice with slime, because when I put it to train kills slime principal, and then when I put a minimum level of life he ends up attacking the copy, and so is taking a beating and not so knocks.
I know I'm doing something wrong, but I have no idea what could be.
Can anyone help me?
I have places like Target?

[Genom]

Can not anyone help me with this?