>>528636142
Potentially playable isn't the same as good, my brown friend. Do you think playing three random legendaries, without any mana cheat, is a good play, especially if you have to draw the later two? Yes, it's value, but you can see the average roll from Marrin's Crown, which does little to nothing with how efficient board clears are, and you get two of them for 3 mana compared to paying full price. If you're spending 7 mana on a Boulderfist Ogre, aggro decks will kill you for it, while control decks are going to remove it and gain life so they're further outside the range of your reach. It also makes it harder to guaranteed draw your space rocks while you have spell damage on the board, which further limits your reach. The quest is slightly better, since I assume the Ninjas have stealth, but you're still paying 5 mana for maybe 6 damage the following turn if there's no taunts, and you're down one card in your mulligan which significantly reduces the odds of drawing spider to get to the end of your deck. It also hard requires you to get 5 shuffle effects off to have any value, which means Shadow Step must be used on the Maulers or Incindius, which significantly limits the ability to pop off with the deck.

Meanwhile, you have to find something to cut from your deck to fit these cards in. What are you going to cut that these bad cards are better then?