A Tiger that could:
-Breathe fire
-Climb walls
-Communicate telepathically
-Grant wishes (nice one Radeonx)
-Fly (with wings, of course)
-Not eat my Cats
-Never die, even if it got nuked
-Change it's appearence with it's mood (normal would be the standard orange with black stripes with orange and black bird wings, angry would be dark red with very black stripes and bat wings, stoned (oh yeah, and it smokes (and somehow grows) weed) would be all psychadelic with moving stripes and trippy bird/bat wings, etc)
-It could turn invisible
-Aswell as being immortal it would make the rider immortal
-It would eat dogs and chavs on sight
-It was impossibly strong, fast and agile
-I could ride it to school.
And THAT, my friends, is the perfect pet.