Mashup: the Gathering Workbench: Virtual Booster

Staff of Calm    R  Artifact Staff of Calm enters the battlefield with X healing counters on it. You can't lose the game and your opponent can't win the game. Whenever damage would be dealt to you, instead remove that many healing counters from Staff of Calm. If there are no healing counters on Staff of Calm, sacrifice it, then shuffle your graveyard into your library.	Villainous Heart    U  Creature – Demon When Villainous Heart enters the battlefield, sacrifice an Ogre, or sacrifice Villainous Heart. When Villainous Heart attacks, all Ogres and Demons get +2/+2 until end of turn. : Regenerate Villainous Heart. 3/2	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.	Knight of the Periphery    U  Creature – Thalakos Knight Knight of the Periphery can't be blocked except by unblockable creatures or by creatures named Knight of the Periphery. 'Never', Mirri, is the same as 'Not yet'. -Ertai, Wizard Adept 4/3	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.
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.	Pull of Pyromancy    C  Enchantment When Pull of Pyromancy enters the battlefield, put a 3/3 Red Elemental creature token onto the battlefield. At the beginning of each player's upkeep, Pull of Pyromancy deals 1 damage to that player, unless he or she controls an Elemental.	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	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	Corona of Power    C  Snow Snow Snow Enchantment – Aura Enchant green creature. Enchanted creature gains ": Deal damage to target player equal to this creature's power. I call on forest's strength – on every thorn on every bramble – for their mass to break our enemies. -from The Fire within All
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.	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	Coast Guarder    C  Creature – Bird Soldier Scout Flying Whenever an opponent casts a creature spell, put a +1/+1 counter on Coast Guarder. 2/1	Creative Eyry    C  Instant When you cast Creative Eyry, cannot be greater than the number of flying creatures you control. Draw X cards.	Island    B  Basic Land – Island

Staff of Calm (rare)
Villainous Heart (uncommon)
Awakened Mosaic (uncommon)
Knight of the Periphery (uncommon)
Prismatic Surge (common)
Steaming Sink Pits (common)
Pull of Pyromancy (common)
Plume Serpent (common)
Walking Nightmuse (common)
Corona of Power (common)
Cho-Arrim Augury (common)
Turn to Brambles (common)
Coast Guarder (common)
Creative Eyry (common)
Island (basic)