Thankfully, in matchups where Karn's static ability is dead, we can still get a ton of value from the planeswalker by using it to tutor various Stax pieces from our sideboard, including: More copies of God-Pharaoh's Statue and Thorn of Amethyst
In moments like this, you'll just wish you were playing with a deck that looks to win in one of the traditional methods, like basic or Commander damage
This card isn't showing much long-term hope, but it has surged upward after dropping as low as $2.10
So basically, Chains punishes players who try to draw lots of cards by keeping cards constantly flowing in and out of players hands, or into the graveyard
There are a few removals like Shriekmaw or Karn Liberated, but for the most part they are shut down quite ably