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.

Arena Walls R Enchantment At the beginning of your upkeep, lose 1 life. At the beginning of each opponent's upkeep, they may choose to skip their draw phase this turn. If they do not, you can not be attacked except by creatures with flying until end of turn.	Catching Searblades U Creature – Elemental Warrior Whenever you play an activated ability of an Elemental, put a 1/1 red Elemental Warrior token into play. An army is only limited by the fuel that feeds it. 3/3	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.	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	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.
Evangelizing Aven C Creature – Bird Soldier Flying As long as Evangelizing Aven is tapped, it gets +2/-2. "They keep screaching 'Repent! Repent! Repent!'. What will it take to stop their infernal squaking?" - Halina, Dwarven Trader 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	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	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	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
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	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.	Cursed Blade C Artifact – Equipment : Attach Cursed Blade to target creature. Equipped creature gets +1/+1. , Sacrifice Cursed Blade: Destroy the last creature Cursed Blade was equipped to.	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.	Mountain B Basic Land – Mountain

Arena Walls (rare)
Catching Searblades (uncommon)
Awakened Mosaic (uncommon)
Mecha Mesa Mount (uncommon)
Curio Curse (common)
Evangelizing Aven (common)
Plume Serpent (common)
Walking Nightmuse (common)
Anti-Aura Acolyte (common)
Krimson Kount (common)
Rat Nest Ogre (common)
Book Slide (common)
Cursed Blade (common)
Learned Response (common)
Mountain (basic)