HeartGold Hardcore Nuzlocke But I Start Out with a Team of 6 lvl 100 Mewtwos and I Can Only Catch Mewtwos and Every Wild Pokemon is a Mewtwo

[Greenfrost]

So, which Pokemon should I catch first?

 

[Blocky_Mudkip]

Shit man that's difficult, maybe Mewtwo

 

[GipoScribantino]

Shiny Mewtwo.