dungeon mtg cards D&D x Secret Lair Bonus Cards!, Not sure if there are others to be pulled, but these were the bonus I got from each D&D Secret Lair. Reliquary Tower won, but the art on that Delver Magic: The Gathering Dungeons &

There are good cards in those other slots, but RVR Collector Boosters are going to be a very swingy experience and that last slot is going to make or break the pack

If you don't control four or more artifacts at that time, the ability won't resolve and none of its effects will happen

Now, the same table for the foil options of the last slot in the Collector Booster: So two things jump out at me right away, given the data

Cloud (Red/White)

Additionally, if you attacked with three or more creatures this turn, you can tap and pay one white to play the exiled card without paying its mana cost

Other Crimson Vow reinforcements include Henrika Domnathi, Welcoming Vampire, Olivia, Crimson Bride, and Edgar, Charmed Groom