First whatever Monster You curently have unless its already about to Croak o its a Suezo/Hare Split with it and Revive a Suezo/Hare any Breed Will Do Now when this Monster Croaks Use the Monster Heart On a Suezo or Hare Which ever One is the one you didnt choose before and When it this one finally dies You can Use this Monster Heart to Make Your Zan More Enduring than a Normal One It Should have the Folowing Charracteristics Tough Skin Fastfootwork and Sharp Eyes