Pokemon transfer?

So like 2 days ago I found out that you could transfer pokemon to black from hgss and dpp, I used it to transfer a few of my mons from ss (eeveelutions, pseudolegendaries, etc.)
I guess I just never knew about it until a few days ago?? I've had the game completed for a few weeks but the route the transfer building is on is my least favorite so I've just never gone there. I wonder what I would've done if I had found this out back when I first played black when I was 7 hahahah

Anyways, I now have an Aggron, Tyranitar, and Salamence to go along with my Gliscor, Swoobat, and Mienshao! Very happy with this team, I think they're slowly adding themselves onto my already huge fave pokemon list ;^_^