(Each in the mana costs of permanents you control counts toward your devotion to blue.) P/T Number 175 Language English Legal Formats Brawl, Commander, Competitive Brawl, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (1/24/2020) If your devotion to blue is zero at the time the triggered ability of Thassa's Oracle resolves, you don't look at or move any cards in your library
It stores up to 80 cards, so there is room for even more cards as their collection grows
The damage can be dealt to any target, and it equals the number of Dogs you control
Without a lucky Misty flip, it would be hard-pressed to catch up to many speedier meta decks, especially as an evolution card
They force you to flip cards in your sleeves or bring a card in from outside of your deck