Dreadnight Soldier

Your life can't go below the number of soldiers
and/or knights you control until Dreadnight
Soldier leaves the battlefield. When Dreadnight Soldier enters the battlefield, if your life is below
the number of soldiers and/or knights you
control, you gain life until you have life equal to
the number of soldiers and/or knights you
control.
A skeleton apocalypse is bad enough. This thing can
take down dinosaurs.