Mightyena’s pre-evolution is called Poochyena. Theyr’e based on both a wolf and a hyena so your nickname works fine.

Picking pokemon based on vibes is still the best way to play imo! I either only use pokemon I think look neat or pokemon I don’t hate but haven’t used before. Of course I use some strategy, like I’m not going to make a party of 5 grass types and a steel type and then wonder why the fire gym is kicking my ass. But as long as I have some form of type coverage, I’m happy to pick whatever pokemon interests me.