I don't recommend you should play any of these outside of competitive play, but you should at least be aware of them if you see them on the casual tables.
Modal Double-Faced Cards (MDFCs) presented a choice between two modes as they are played, essentially netting you the possibility of having a second card, or even more as in the case of Valakut Awakening // Valakut Stoneforge, for the price of one
If that permanent was the first spell you cast that turn, the next spell you cast that turn is your second spell
The challenge involved wanting the monster themes to matter without making it a typal set in the way the Onslaught and Lorwyn blocks had been
These are the cards that made your opponent shake in his boots and slump in his chair
As it turns out, most decks have a hard time getting rid of enchantments, so once Enchantresss Presence lands on the battlefield, theres a good chance that itll stay for a while