Poison counter decks should be nerfed! Those who set up their decks for poison counter wins, just cannot be beat unless you either setup your whole deck, specifically just to counter them, or you just get lucky with your card draw while your opponent gets unlucky. Which entirely defeats the point of a so called strategy game! At least add something like "Leeches" to Arena! Even if it doesn't remove counters! Just something that can be used to allow you 1 to 2 rounds of tempo!

It's like there just are no good answers to poison counters whatsoever!