In one of the many brews provided by Rey for Amonkhet Standard, he made a list of a tribal deck based on Cats. The revelation of Regal Caracal was probably the main reason. Here below is his first version of the deck, whom he nicknamed as Hello Kitty.
Deck Name: Hello Kitty
Creatures
4 Sacred Cat
4 Metallic Mimic
4 Long Tusk Cub
4 Pouncing Cheetah
3 Prowling Serpopard
4 Felidar Guardian
4 Regal Caracal
2 Felidar Sovereign
Instants/Sorceries
4 Prepare//Fight
Artifacts
2 Panharmonicon
Enchantment
3 Cast Out
Lands
4 Canopy Vista
4 Fortified Village
6 Forest
6 Plains
2 Scattered Groves