Mashup: the Gathering Workbench: Virtual Booster

Diabolic Anvil    R  Artifact When Diabolic Anvil enters the battlefield, you may exile a nonland card from your hand. When you cast spells, you may pay an additional if the spell shares a type with the exiled card. If you do, search through your library for a card that shares a type with the exiled card, reveal it, put it into your hand and shuffle your library.	Mecha Mesa Mount    U  Artifact Creature – Pegasus Flying Mecha Mesa Mount can't attack, unless at least two other creatures are attacking. When Mecha Mesa Mount attacks, up to three target creatures can't block this turn. 2/2	Coffertooth Rats    U  Creature – Rat Whenever a Rat enters the battlefield under your control, untap all Rats you control. They gain Intimidate until end of turn. With each new member, their frenzy increases. The rat sense of community fails, as sharp teeth replace sharp wits. 2/1	Institute of Arcane Sewers    U  Land , : Add to your mana pool. : Until end of turn, Institute of Arcane Sewers becomes a 1/1 blue and red Merfolk Wizard with ": Institute of Arcane Sewers deals one damage to target creature or player."	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	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	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.	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
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	Anti-Aura Acolyte    C  Creature – Elemental Shaman Protection from enchantments , Discard Anti-Aura Acolyte: Target creature gains protection from enchantments until end of turn. 2/2	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.	Savaen Blessing    C  Enchantment – Aura Enchant Land Enchanted Land gains protection from other enchantments. Sacrfice Savaen Blessing: Destroy target enchantment. "When the land is pure, the magic will follow." -Sidaen of Savaen	Island    B  Basic Land – Island

Diabolic Anvil (rare)
Mecha Mesa Mount (uncommon)
Coffertooth Rats (uncommon)
Institute of Arcane Sewers (uncommon)
Holy Favor (common)
Unloved Devil (common)
Turn to Brambles (common)
Curio Curse (common)
Walking Nightmuse (common)
Kyren Tax Collector (common)
Plume Serpent (common)
Anti-Aura Acolyte (common)
Steadfast Assault (common)
Savaen Blessing (common)
Island (basic)