I want you to close your eyes for a second and imagine you're on Pokémon Showdown in Gen 7. You're in the teambuilder, making an OU team, and you're scrolling through the list, and suddenly... you see Unown. In OU. How can this be?
It turns out that Unown got insane buffs this generation. Although its moveset wasn't improved at all, its stats are amazing. It's still very frail but its Special Attack and Speed have become top-notch, and players have started to use sets with Choice items, Sash, whatever they want.
You feel happy for Unown. Forgotten for five generations, it suddenly becomes a top-tier threat. It can run any Hidden Power it wants, and although it won't sweep any teams, it has the ability to apply massive pressure on the opponent.
"All because of Game Freak", you think to yourself.
At the moment, though, Unown is staring its low BST and unviability in the face.
All because of Game Freak.
DARNIT GAMEFREAK