Unless youre running a deck specifically built to be larger, most of the time you want to ensure your deck is no more than 40 cards - as a smaller deck increases your chances of pulling the card you want
There are Shop Tokens, there are Hourglass, there are Tickets and there are Emblems - it's all there, but as far as I can tell, you can only buy one of these, and while it's technically possible, it's not exactly front and centre in the interface
If life was paid, this planeswalker enters with two fewer loyalty counters.) +1: Until your next turn, up to one target creature gets -3/-0.2: Target player mills three cards
3 will rapidly deplete your opponents life total down to nothing
The original Emrakul could slam the door shut once you had more mana than you could ever need, but it showed up more often as the best thing to cheat in for far less than fifteen mana with the likes of Through the Breach and Goryos Vengeance