vhalelujah, you need a luck to have a CON-type Elin. But you can also use a pet-scrolls to change 1 stats point from one type to other type.

hengbrian97, no clue. I think you will lose your pet forever and need to pay stars to get your pet back from the Holy village's church. But I never have a pet with 0 amity before, so I am not sure. You must be very bad in caring pets to have zero amity.