Has anybody figured out what the Master of X (where X = 1,2,3) special cards are tied to? I've looked at enough Master of 3 decks to know that there is no single Dis card that is common between them all. Additionally, the card art has Master of 1 as a Special, but the app has it as a Rare.
Help from Future Self is tied to Timetraveller . If you get a Timetraveller , you will almost assuredly get a Help from Future Self . If you get 2 Timetravellers , you will get 1 Help from Future Self and almost assuredly get a second as well.
The Horsemen are all tied to Pestilence, so that if you get Horseman of Pestilence , you should (unless the previous cards are already assigned (not sure if they boot to make room)) get Horseman of Death , Horseman of Famine , & Horseman of War .