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)
Rarity, Card #: Common, #253
Here's a quick look at what you can find: Rare tournament powerhouses such as access coding speakers and souls of magicians
The second (and more dangerous) way you can be disrupted is if your resources run too low, and your hand and deck combined have 6 or fewer cards in them, causing you to deck out
Back then, this seemed to be quite balanced when you knew that your opponent didnt have a monster card stronger than yours
At first glance, all the cards that exist in the Pokmon card game universe are perfectly legal to play in tournaments