Nerf/Ban Alchemy cards
Sorry not sorry, the Alchemy cards are unbalanced and make the experience of playing a match stressful and/or unfair. I understand that alchemy is a "full digital" format, but creating cards that even in the physical format would be banned everywhere should't be your focus. Grenzo, Crooked Jailer and Mythweaver Poq are just a couple of example, but I could cite every creature with the intensity keyword (another senseless feature of Alchemy). I say that these card are unfair because there is no strategy nor there Is a downside/balance/cost for the abilities of this card. Take Mythweaver Poq: it copies a non land land when it enters the battlefield. Now I have a card/commander (in the Brawl matches it is gaining popularity very quickly because of this, I guess why) that makes me play two land per turn, and moreover one is a copy of another one.
My suggestion is to nerf these cards so they don't make people quit the match as soon as they see the card (trust me, it's happening), or make a division in formats between one where you can use Alchemy cards and one where you can't.
Or don't, but you won't attract players (who probably plays the physical format) if this is you focus