>>44732073>TypeDark, obviously.
>StatsRinrin: 50/37/50/37/50/66 - 290
Berunrun: 64/50/88/50/88/100 - 440
What I did here was reverse the stats of the Purrloin line to be refocused upon defense, as this was the case for several Johto mons, and readjust a few stats to match the BST of the Meowth line. It's not about making them "good" but what we would've realistically had.
Considering their chime/bell theme, and the idea black cats in Japan where considered signs of good luck, I could see the lore of them welcoming travelers to Johto's shrines, and being seen as protectors considering they are meant to ward off evil:
>Abilities by Gen - Gen 3: Soundproof
Gen 4: Super Luck
Gen 5 (HA): Magic Guard
>Max Happiness evolution when leveled at nightThe superficial similarities to Umbreon are why I imagined it was cut to begin with, but this makes the most sense. GF should've introduced it anyways, as the bell/shrine theme could've been unique enough on its own.