If Evie Frye and Jacob Frye are your commanders, your deck may contain cards with blue and/or black in their color identity, but not white, red, or green
If Fynn is your commander of choice and your beaters are Gnarlwood Dryad, Bloated Contaminator, and Questing Beast, you should consider that not every table cares for poison decks
Just make sure you bring your fetchlands if youre not in blue-green
It's like a whole new world
We are, however, getting a new co-op experience instead
For example, Annihilate will be card advantage if it resolves normally targeting a creature an opponent controlsyou lose one card from your hand but you also draw a card, for a net gain of zero cards, and your opponent loses one card, so you're up one card relative to them