Talk:Jackknife, "Dragoner Wall!"/@comment-27007181-20170307195612/@comment-28173866-20170307221635

Impact Monster stay on the field.

Of course not, maybe you should have another look on the basic rules. First, you are not allowed to call monsters during your opponents turn. Second, you can't use abilities or spells, if you have zero life, because you already lost the game. There are a handful of cards, that bypass those rules via their effects, but none of those involve a buddycall.