these spells let you cobble together an effective response to a wide range of board states
Our goal is to use cards like Manifest Dread, Hide in Plain Sight, and Threats Around Every Corner to get a massive threat like Valgavoth, Terror Eater, Vaultborn Tyrant, or Portal to Phyrexia on the battlefield as a face-down 2/2 creature and then use Parting Gust, Hauntwoods Shrieker, or Unyielding Gatekeeper to flip the face-down creature face up to build a massive monster as early as Turn 3
With Tarkir: Dragonstorm prerelease events beginning on Friday, April 4th, it is entirely plausible that these were sent under the pretense that they were Tarkir prerelease kits
Search for Azcanta: There are many ways to end up with seven cards in your graveyard in all formats
Wait a minute Spellshock Shocks you for casting spells
Answer the call of the heavens with the Magic: The Gathering Foundations Commander Deck Calling All Angels