Showdown in the Badlands Cards List & Guide
No proof, just my experience.
The decks I'm facing lately are able to do vast amounts of damage fairly early. Didn't used to be the case.
Once I liked playing control in standard.
Then they killed that.
Then I enjoyed playing control in Duels.
Now that is dead.
I seem to have run out of places to play. They talk about exit points for games. But it feels to me that I have been shown the door.