What are all the Pokemon I wouldn't be able to obtain with these games?

I’m working on a Living Dex in Ultra Sun, and I want to know what Pokemon it’s going to be impossible to get (if anything). I have the following games I can use:

I’m able to use Poke Bank and Poke Transporter. I’m able to get some Mystery Gifts on Black 2 via the DNS exploit. If a Pokemon would be impossible to get only after something else happens (e.g. choosing Oshawott locks you out of Snivy and Tepig in Black 2), please specify that Icanget all three, but in reality only one can be obtained if I don’t reset my game. I’d like to see how far I can get before having to trade with someone and/or cheating for the unobtainables.

Thanks in advance.

Pleaselog inorregisterto add a comment.

These are all the Pokemon you can’t get with the games you have(this includes forms and regional variants):**All Unova, Kalos, Hoenn, and Alolan starters and mascot legendaries that you didn’t pick, or didn’t have the mascot for.(This obviously requires trading or reseting)

White Kyurem(unless you trade your Reshiram from US to B2, and use your Kyurem there, using GTS)Latias(If you don’t have the event item)Eletrivire, if you decide not to trade, the item’s available, but you would have to tradeAlolan SandshrewAlolan SandslashOranguruDrampaLunalaPheromosaCelesteelaDawn Wings NecrozmaStakatakaLugiaKyogreSwirlixSlurpuff

Note, if you pick Archen in B2 and Aurorus in Y, this list will apply, otherwise, them and their evolutions should be considered added. This list also doesn’t include all Pokemon that can be obtained through breeding, Poke pelago, or Pokemon that can only be obtained in the Gens/Regions you don’t have, I, II, VIII. If you want I could include these.

Source: Cross referencing every Version exclusive Pokemon page with the locations page of those Pokemon, as well as Serebii, as it includes some things this site doesn’t(Fossil Man in Twist Mountain, since he gives you the fossils, not the Pokemon, and 0RAS Legendaries through the Mirage(Lake Spirts, etc) also, Knowlege(I’ve played Sun and OR before)