Mashup: the Gathering Workbench: Virtual Booster

Spellbreaker Gargantuan    R  Creature – Turtle Beast Spellbreaker Gargantuan can't be countered. : Spells you cast this turn with a converted mana cost of five or greater can't be countered by spells or abilities. Mercadians don't dare fish for Gargantuans. They're regarded not as turtles but as a force of nature, like a cyclonic storm or a whirlpool breaker. 5/5	Awakened Mosaic    U  Enchantment Whenever you cast a Shapeshifter or an Elemental spell, Awakened Mosaic becomes either a 4/4 Shapeshifter creature until end of turn, or an enchantment until end of turn. It was intended to be a guardian for the ancient library. It wasn't intended to work.	Unnatural Fever    U  Enchantment Creatures you control get +2/+0. At the beginning of the end step, sacrifice Unnatural Fever, then gain 4 life for each tapped creature you control.	Sanctum Whisperer    U  Creature – Human Cleric Sacrifice Sanctum Whisperer: The next time damage is dealt to a you or a creature you control this turn, the controller of that source of damage reveals his or her hand. You choose a card from it, and that player discards that card. 1/4	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.
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.	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.	Walking Nightmuse    C  Creature – Spirit Creatures can't block Walking Nightmuse unless their controller discards a card for each creature he or she controls that's blocking Walking Nightmuse. 4/2	Kyren Tax Collector    C  Creature – Goblin Advisor Haste If an opponent controls more lands than you, you may play Kyren Tax Collector without paying its mana cost. In Mercandia, there's a tax for future land you will buy. 1/1	Holy Favor    C  Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. At end of turn, return Holy Favor to its owner's hand.
Unloved Devil    C  Creature – Devil Mercenary Flying It's hard to call it flying, the way they seem to fall out of the sky, collapsing on their prey. 1/1	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.	Blightsoil Druid    C  Creature – Elf Druid , Pay 1 life: Add to your mana pool. "The land belongs to the murk as far as the eye can see. The deeper you sink, the more you can see." 1/2	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	Mountain    B  Basic Land – Mountain

Spellbreaker Gargantuan (rare)
Awakened Mosaic (uncommon)
Unnatural Fever (uncommon)
Sanctum Whisperer (uncommon)
Claws of the Viashino (common)
Curio Curse (common)
Steaming Sink Pits (common)
Walking Nightmuse (common)
Kyren Tax Collector (common)
Holy Favor (common)
Unloved Devil (common)
Book Slide (common)
Blightsoil Druid (common)
Rat Nest Ogre (common)
Mountain (basic)