Well, since there's mention of Diablo and your name is Salamence, I'll go ahead and combine the two and recommend the wonderful Shin Megami Tensei series.
Shin Megami Tensei is often compared to pokemon, and they're similar in a few ways. Specifically, you can recruit demons in various titles and watch them grow and evolve, though usually you'll end up fusing them together. The story and concepts are generally rather mature, and the gameplay can be punishing in some cases, but once one grasps the concepts the games are quite a bit of fun.
And, just to make sure the franchise can appeal to larger audiences, the games across multiple genres, from Strategy to Action to Life-Sim to Rhythm.