Mashup: the Gathering Workbench: Virtual Booster

Dehumanize    R  Instant Choose one – Turn two target creatures face down, then shuffle them on the battlefield; or, Destroy target face down creature. Pay 4 life: Return Dehumanize from your graveyard to your hand.	Blade of Shiv    U  Artifact Blade of Shiv enters the battlefield tapped. Sacrifice Blade of Shiv, , : Counter target artifact spell. Sacrifice Blade of Shiv, , : Destroy target artifact. "Sturdy boots, a strong cloak and a stronger sword. If you want to thrive, though, you'll need something extra." -Shivan Guide	Dogwood Elder    U  Creature – Treefolk Spellshaper : The next time you would draw a card, instead, put the top three cards of your library into your graveyard. If you do, destroy target artifact or enchantment. If a permanent is destroyed in this manner, put a +1/+1 counter on Dogwood Elder. 3/3	Queen Riftwurm    U  Creature – Fairy Wurm Vanishing 5 When Queen Riftwurm enters the battlefield, remove a time counter from it for every used to pay its cost. 6/5	Prismatic Surge    C  Instant As an additional cost to casting Prismatic Surge, discard a card. Target creature gets +X/+0 where X is equal to the discarded card's converted mana cost, and has protection from the colors of the discarded card.
Curio Curse    C  Enchantment – Aura Enchant Creature When enchanted creature deals damage to a player, look at the top three cards of your library, put one in your hand, put the rest back in any order, then sacrifice Curio Curse. Enchanted creature must attack if able.	Shade of Prey    C  Creature – Bird Shade Flying Sacrifice a land: Return Shade of Prey to its owner's hand. : Shade of Prey gets +1/+1 until end of turn. 2/1	Book Slide    C  Instant When you cast Book Slide, X cannot be more than the number of attacking and blocking creatures on the battlefield. Draw X cards. Each day, the Librarians of Lat-Nam fight against the growing tide of books. The books are winning.	Claws of the Viashino    C  Enchantment – Aura Enchant creature you control Flash : Enchanted creature gets +1/+0 until end of turn. Return Claws of the Viashino to its owner's hand: Sacrifice the enchanted creature and add to your mana pool.	Steaming Sink Pits    C  Enchantment – Aura Enchant Land Enchanted Land is a Swamp and Mountain. Whenever enchanted land becomes tapped, that land deals two damage to its controller.
Necrospawn Liege    C  Creature – Zombie Cleric Tap an untapped creature you control, or lose 1 life: Put a devotion counter on Necrospawn Liege. Remove five devotion counters from Necrospawn Liege: Draw a card. 3/3	Cho-Arrim Augury    C  Instant If an opponent controls a Swamp, and you control a Plains, you may cast Cho-Arrim Augury without paying its mana cost. Draw a card, then put a card from your hand on top of your library. Then look at the top four cards of your library and put them back in any order.	Rat Nest Ogre    C  Creature – Ogre Discard a card at random from your hand: Rat Nest Ogre can't block this turn. Any player may play this ability. "Been living with the rats too long. Can no longer see. Rats don't mind, though. Just give me their eyes." 4/1	Turn to Brambles    C  Instant Target creature becomes a 2/3 green Plant Wall with defender and ": Regenerate this creature." until end of turn. Wrap arms and roots together, be convulsed with grief, and bring back chaos out of shape. - Conrad Aiken, The Room	Swamp    B  Basic Land – Swamp

Dehumanize (rare)
Blade of Shiv (uncommon)
Dogwood Elder (uncommon)
Queen Riftwurm (uncommon)
Prismatic Surge (common)
Curio Curse (common)
Shade of Prey (common)
Book Slide (common)
Claws of the Viashino (common)
Steaming Sink Pits (common)
Necrospawn Liege (common)
Cho-Arrim Augury (common)
Rat Nest Ogre (common)
Turn to Brambles (common)
Swamp (basic)