The fetchlands come in a lot of different flavors, but we’re generally talking about Bloodstained Mire and the gang rather than Evolving Wilds. These cards let you find a land card from your library and put it into play, and paying one life in Commander is such a laughably small amount that it may as well be completely free. These lands are great in every deck but even better in ones with complicated mana bases, those who want a card in the graveyard, or the ones that care about Landfall. Evolving Wilds is more than suitable if you want to keep to a budget, while wanting to find the colors you need to cast your spells.