Crimson Vow continues the new Innistrad storyline begun in Innistrad: Midnight Hunt. As humanity turned to the hope of rituals and a Harvesttide festival to save them from the Eternal Night in Midnight Hunt, those that stalk from shadows aren't just the mindless zombies and frenetic werewolves, but also the eternally undead with calculating, grand designs of their own. This set features the biggest vampire wedding in Innistrad history, a bonding between the Markov and Voldaren bloodlines. Olivia Voldaren is the bride, and aims to form a pact with the Markovs to take control over Innistrad.