So lots of people have suggested Jaglions, the hybrid between jaguars and lions! BUT there are also black jaguars which are very rare to appear in their litters, maybe we could first make the Jaglion and then make a sort of lethal mutation of you getting a jaglion, but along with its health message, it says "Your lioness realizes another thing about her cub, it is melanistic but it also has its abnormality." and to try getting more black jaglions, the chances of producing a black jaglion with a jaglion should be at least a little high including that the black jaglion is just a colour variation of the jaglion. Since the black jaglion can be a lethal mutation, it should be able to grow into an adult but die at 10 - 12 years instead of 15 - 16 just to produce more of them.

This can be a jaglion:


and this can be a black jaglion:



And why did I choose to make it? Surely once the jaglion gets created it will have its colours and markings BUT melanism has its own colour and it doesn't clear all markings from the lion, it just makes the lion black, doesn't show anything as their original colour but the eyes and leave every other thing alone. The only marking the black jaglion should have is its spots, in the picture, the black jaglion's skin is a very very dark navy blue but the spots are all black. That was my idea for the black jaglion!

This type of lethal mutation could make the (to be made) jaglion a new popular hybrid!