[650-721] Obtaining every Pokémon in Pokédex order 

This is part 6 of an ongoing series, so if you wish to have context, check out the playlist below. Otherwise just keep on watching, and if you are interested in finding out more, here it is:
• Dex Order Challenge
Also, if you like other games, want a change of pace from these Pokémon videos, want something else chill to have on in the background or are waiting patiently on my next upload, have little look at this one:
• Getting all achievemen...
In this challenge run, I will be finding out if it is possible to obtain every single Pokémon in existence, while getting them all in National Dex order. Once I've obtained one, I am then allowed to move on and catch the next one after it. However, I am allowed to freely obtain any Pokémon as many times as I like after I've gotten it once.
This is one entire continuous series, meaning that for this leg of the challenge, since I've already obtained every Gen I-V Pokémon, I am free to catch any of them that appear. It is not a living dex, so once a Pokémon has been picked up I am free to do whatever I like with it.
I can also use any games in the series, and can freely hop between them at will, along with being allowed to trade back and forth with them. I can go back to games I've used in previous parts of the challenge to pick up Pokémon if they are easier to obtain there, and if I want I can use any side games, peripherals, glitches or even events if need be, though I will primarily stick to main series games whenever possible. If obtained in a side game, it will only count as obtained once it actually arrives in a core series game, or Pokémon HOME.
Be sure to subscribe if you enjoyed this because I will be continuing to make more of these videos and aim to eventually fully complete this challenge. Along with this, in between these I'll be making non-Pokémon videos as well in order to broaden my horizons and create fresh new content for myself, so I hope you look forward to those as well.