The bad news about these cards is that theyre not very good in Limited because youll never have a Commander
Basic lands come in six types, with each of the six producing a different type of mana when tapped: Plains produce white mana, Islands produce blue, Swamps produce black, Mountains produce red, Forests produce green, and Wastes produce colourless (and are much, much less common than the other five, having only appeared in one set)
These are the first rarity types to not feature in every pack and are wanted by lots of players
Nice tribal dork making in your brew
You can deal your opponents damage, gain life, get card advantage, and trigger your leave the graveyard synergies, all in one card
If they cast a problematic card, you can counter it and have one less thing to worry about