Chi-Yu

The last "Ruinous" Pokemon is an ADORABLE dark/fire type whose true form is a set of carved beads so valuable, they inspired enough betrayal and greed to be brought to life by human envy. These beads now form the giant "eyes" of a little, floating goldfish with a body made of fire, said to burn so hot (you know, like envy!) that it swims through lava its own body creates as it passes through stone. Neat! I love this last one being unexpectedly small, and I love that any Pokemon is a fancy goldfish formed from sin. It's one of those that doesn't feel like it ever would have been a Pokemon in the early days of the franchise, more like something from Persona or Digimon or just about any other monster series, but there's nothing wrong with that!

I'm just not so sure it actually looks good from an artistic perspective. The artwork kind of remedies it, but in-game, the bead eyes really clash with the 2-d animated look of the fire body. Still, 5/5 for being an evil goldfish, and for being one of the buggy-eyed kind of goldfish.