Mashup: the Gathering Workbench: Virtual Booster

This booster was generated with modern collation since the cardset contains mythics: 1 rare / mythic, 3 uncommons, 10 commons, 1 basic land.
You could alternatively have 15 random cards regardless of rarity.

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	Phyrexian Revenger R Artifact Creature – Horror Reveal your hand: Target opponent chooses a card in your hand, and you discard it. Whenever you discard a card, Phyrexian Revenger gets your choice of flying, first strike, deathtouch or lifelink. "Weakness is versatile. Why exploit only one?" -Gix, Yawgmoth Praetor 4/4	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."	Velvet Fungus U Creature – Fungus : Put a 1/1 green Saproling token into play. Whenever a Saproling dies, put a spore counter on Velvet Fungus. Remove three spore counters from Velvet Fungus: Prevent all combat damage that would be dealt this turn. 1/1	Elite Trapper U Creature – Merfolk Ranger , : Return target attacking creature to its owner's hand. , : Return all attacking creatures to their owner's hand. Activate this ability only if there are exactly two attacking creatures. Runaway lovers are her specialty. 3/3
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	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	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	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.	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
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.	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	Learned Response C Instant You may pay 1 life and exile a blue card from your hand rather than pay Learned Response mana cost. Counter target non-creature spell.	Holy Favor C Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. At end of turn, return Holy Favor to its owner's hand.	Mountain B Basic Land – Mountain

Walking Nightmuse (common, foil)
Phyrexian Revenger (rare)
Institute of Arcane Sewers (uncommon)
Velvet Fungus (uncommon)
Elite Trapper (uncommon)
Savaen Blessing (common)
Shade of Prey (common)
Plume Serpent (common)
Steaming Sink Pits (common)
Corona of Power (common)
Pull of Pyromancy (common)
Anti-Aura Acolyte (common)
Learned Response (common)
Holy Favor (common)
Mountain (basic)