If Donatello, the Brains and Splinter, the Mentor are your commanders, your deck may contain cards with blue and/or black in their color identity, but not cards with red, green, or white
Can you dismantle cards in MTG Arena
because not only does it kill your lands, you can't play any additional lands beceause they'll become 0/0 creatures too
VS Boros Burn Out: In: This matchup is about as good as it can get without having a hate card for the matchup like Collective Brutality
I expect people to play this precon a few times and then likely take it apart for pieces because once its done the thing where it kept most opponents goaded for the entirety of the game, its sort of reached the peak of its potential, and people might want to lean way more into the Dragon tribal support Firkraag provides