For example, if the top card is a land, you can only play it on a main phase during your turn, and only if you havent already played a land that turn
That said, both of these rules were broken in later years, with sets like Commander Legends , War of the Spark (through planeswalkers), Dominaria , Dominaria United , Kamigawa block, and The Lord of the Rings: Tales of Middle-earth used Legendary cards as a mechanical theme, with uncommon Legends to boost up the numbers in Limited play
In addition to ample Commander play, this card also sees use in both Modern and Legacy
Except for determining whether or not a permanent can transform, a spell, ability, or rule that needs information about a double-faced permanent sees only the information given by the face that's currently up
Force of Will The ultimate counterspell A good counterspell is one that you can cast whenever you feel like it, and ideally one that hits everything