To support this popular multiplayer format, Wizards has designed four new Commander decks
Mountains Matter Another advantage of playing mono-red is access to cards that care about Mountains, with a prime candidate being Valakut, the Molten Pinnacle
As much as this sucks against creature centric decks, even those decks still use non creature spells, so you are almost guaranteed to get triggers
While some might argue you should do this second, looking at your decks composition gives you a better idea of which colors you need more access to, which will help narrow down what you should be considering
On the other hand, if you prefer to keep your items sealed, older Sword & Shield boxes might be better, though theyre getting harder to find these days
That means speedrunning our dungeons, especially the two shorter ones Lost Mine of Phandelver and Tomb of Annihilation