Terrible. Lowest tiers of competition has crazy hard decks cannot win 2 matches in a row. If you lose a bunch it alters the randomness of the algorithm and you get a couple of easy people. Nothing random about the cards. If you take a land out from a 50/50 land/ no land deck you get 0 lands after your first hand. If you added a land card with 8 lands out of 60 cards ...Your going to get all lands after the first hand. If you have 4 of the same card in a deck of 60, you tend to get 3 in hand.....