I'm sure a lot of us have at least one Pokémon that we've always wanted to add to our team, but we were unable to find one. For me, this is Dusk form Lycanroc. I missed the event during my hiatus, but the Pokémon looks legit. What Pokémon have you always wanted? Why were you unable to catch this Pokémon? Have you tried asking around to find one?
That was Feraligatr and Shiny Zard in every Pokémon game that ain’t gen 2 XD Though, I did want a seviper for Ultra Sun. Not cause I thoughtt he was good,cause he’s actually bad, but I just like Seviper as a Pokémon
Literally any shiny to ever exist I still have yet to find one in game. I’ve never had an alakazam but that’s because i never bothered to actually try and evolve a Kadabra. Always a poke I’ve wanted to use tho
Tapu Bulu. He broke out of every single ball we threw. But as in looking for Pokémon... I've found every Pokémon I wanted, just that I couldn't catch any. And I can't find any shinies.
Dhelmise. I wanted one on my Ultra Moon team but then I found out they have a ridiculously low appearance rate (something like a 1% chance). I just didn't feel like hunting for one after I found out about it. And my brother ended up finding one a soon as he hunted in the location they are found. Talk about luck...
80% of all Mythical Pokémon I'm missing all mythical Pokémon from gen 2-5, because I didn't know how it worked when I was young.
I've had the entire dex stored in boxes for several gens now, but the third-gameness bait of USUM didn't work on me this time so I haven't bought any. That turns all USUM exclusives into Pokémon I want but I can't have, but the one that hurts me the most is Lurantis with Superpower
Just a few months ago I decided to “return” to Pokémon since I lost interest a little bit, and it turns out I missed out on a Marshadow giveaway. And obviously no one’s gonna give away their precious Mythical, so I prob won’t ever get one How could this happen to meeeeeeeeee I made my mistaaaaaaaaakes
Shiny Honedge (Aegislash). I tried for SO LONG to try and get one, but ended up giving up and just trading for one. (He remains as one of my favorite Pokémon, actually, but I still would like to catch/hatch my own someday.)
In Fire Red I spent so much time trying to catch a dang Cubone, but could never find one. But, if we're talking about more recent games, then I would have to say Mareanie. I've always loved Poison types, and I really wanted a Mareanie, but I could never find a Corsola to lure one out, so I just wound up trading for one
Version exclusives usually, when I'm doing playthrough or something is not uncommon for me to suddenly want to use a mon like Growlithe in Silver which you can't catch in that game, or Rufflet in Black. While I get all versions of all the main games I can't always trade due to rule restrictions in my run or because I simply have no one to trade with like in the case with Silver and the Growlithe.
Mostly just shinies, I have a complete living dex, aside from Meltan and Melmetal, who are not yet released in the main games anyway