Mashup: the Gathering Workbench: Virtual Booster

Drain the Humours    R  Enchantment – Aura Enchant Creature Enchanted creature gets +3/+3 and gains Intimidate. At the beginning of the second main step, if the enchanted creature attacked this turn, for each land the opponent controls, that player adds a mana to his or her mana pool that that land could produce, then puts all mana from that player's mana pool into yours.	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.	Revengeant Aven    U  Creature – Bird Cleric Flying When Revengeant Aven enters the battlefield, if you have seven or more cards in your graveyard, put three 1/1 black and white spirit tokens with flying into play. 3/3	Shimmering Qumulox    U  Creature – Beast Illusion Affinity for auras (This spell costs less to cast for each aura you control.) Flying : Return Shimmering Qumulox to its owner's hand. 5/5	Holy Favor    C  Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. At end of turn, return Holy Favor to its owner's hand.
Krimson Kount    C  Creature – Kobold Noble Whenever you cast a Kobold, put a Destiny counter on Krimson Kount. Remove a Destiny counter from Krimson Kount: Krimson Kount becomes a 3/4 Kobold Warrior Spirit until end of turn. 0/1	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.	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.	Thanatos Drake    C  Creature – Drake Flying , , Exile a card from your graveyard: Target player discards a card. Activate this ability only any time you could cast a sorcery. 2/4	Plume Serpent    C  Creature – Serpent When Plume Serpent enters the battlefield, you may search your library for an Island card and put it onto the battlefield tapped under target player's control. If you do, shuffle your library. Plume Serpent can't attack unless defending player controls an Island. 6/5
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	Steadfast Assault    C  Sorcery Deal 1 damage to all creatures your opponents control. Creatures you control get +0/+3 until end of turn. Ha! Conviction? Your 'noble spirit' might win wars, but first you'll need to keep your flesh intact.	Snowball Fight    C  Instant Until end of turn, blocking creatures neither deal, nor receive combat damage, and gain ": Deal 1 damage to target attacking creature".	Swamp    B  Basic Land – Swamp

Drain the Humours (rare)
Awakened Mosaic (uncommon)
Revengeant Aven (uncommon)
Shimmering Qumulox (uncommon)
Holy Favor (common)
Krimson Kount (common)
Curio Curse (common)
Claws of the Viashino (common)
Thanatos Drake (common)
Plume Serpent (common)
Rat Nest Ogre (common)
Turn to Brambles (common)
Steadfast Assault (common)
Snowball Fight (common)
Swamp (basic)