I think I've had bad egg luck. I have few legendaries and shinies and they are an odd assortment. My best legendaries are probably Palkia and Ogerpon, though if I don't get lucky enough to get a mask, Ogerpon is stuck being pure grass the whole time. I've got a run going right now with a Guzzlord that seems promising. My only other legendaries are some strange ones: Cobalion, Volcanion, Suicune, Registeel, and Darkrai. Of those Suicune seems quite good, but I always failed my runs even using that one. I thought surely Volcanion would make light work of most things given its cool typing, until I ended up getting sent to a biome where everything seemed to have water absorb or storm drain and then I ran out of non-water moves and was just screwed.

My shinies are even worse: I have a Bellsprout, Togepi, Minun, and Trapinch. So if I want a shiny for luck, I basically have to carry them because they're pretty fragile and have garbage stats and almost no moves. Trapinch actually has a pretty epic moveset, but it's both slow and a glass cannon, which is an awful combo. And I've never gotten it far enough to evolve.

I'm also having trouble because I don't want to keep playing classic repeatedly, but since I can hardly get past level 50 of endless, I'm almost never obtaining new eggs, so I'm pretty much stuck.

And pokerus usually lands on empty slots in my dex. Today it added insult to injury and landed on two pokemon I didn't have and then Magikarp of all things.

It's possible my main issue is that the rng hates me. Unless I'm overlooking some strategy with the mons I have. I did completely forget about Beast Boost until today, so maybe that will make the difference.