This card is pretty fun. It's kind of like Unexpected Results. Actually, it is Unexpected Results, only more repeatable. It costs a little more, but it's extremely repeatable and won't go away if you hit a land. There's nothing wrong with this card in my opinion. It's a random card every turn (at least) for only 5 mana. It's pretty awesome!
Pros: A random card every turn
Cons: Costs 5 mana (you might overspend)