Milles Borne is a card game that they are selling in all of the major big box stores. There are instructions in there. I belive it is 2-8 players. You can also purchase Old Maid, Go fish, Poker sets, and various other decks of cards that will have the instructions.
Magic: The gathering it's a specialty card game though, but once u learn it it's amazing
Rummy. There directions online that r almost always correct n its really fun