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.

Holy Favor C Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. At end of turn, return Holy Favor to its owner's hand.	Incandescence of the Oppressed R Artifact Whenever a non-token creature you control goes to the graveyard from the battlefield, if you control fewer creatures than an opponent, put a token that's a copy of that creature onto the battlefield, except it's a white Spirit.	Niven's Battlestone U Artifact When Niven's Battlestone enters the battlefield, target red creature can and must be blocked by exactly two creatures this turn. : Add to your mana pool. , , Sacrifice Niven's Battlestone: Destroy all non-land permanents with a converted mana cost of three or less.	Whiptail Hermit U Creature – Human Beast Druid When Whiptail Hermit enters the battlefield, reveal cards from the top of your deck until you reveal a land. Put that land into play tapped, put the rest of the revealed cards into your graveyard, and Whiptail Hermit deals damage to a creature you control equal to the number of cards revealed this way. 6/3	Dawnfield Puredeer U Creature – Deer , Sacrifice Dawnfield Puredeer: If a source would deal damage to you or a creature you control this turn, prevent 1 of that damage. , Sacrifice Dawnfield Puredeer: If a source would deal damage to you or a creature you control this turn, prevent 2 of that damage. 2/2
Necrospawn Liege C Creature – Zombie Cleric Tap an untapped creature you control, or lose 1 life: Put a devotion counter on Necrospawn Liege. Remove five devotion counters from Necrospawn Liege: Draw a card. 3/3	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	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	Wicked Witch Engine C Artifact Creature – Elemental Horror : Target player dealt damage by Wicked Witch Engine this turn loses 1 life. 2/2	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.
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.	Curious Drake C Creature – Drake Flying Whenever Curious Drake deals damage to an opponent, you may draw a card. No bird soars too far, if he soars to find his desire. 2/2	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	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	Swamp B Basic Land – Swamp

Holy Favor (common, foil)
Incandescence of the Oppressed (rare)
Niven's Battlestone (uncommon)
Whiptail Hermit (uncommon)
Dawnfield Puredeer (uncommon)
Necrospawn Liege (common)
Turn to Brambles (common)
Unloved Devil (common)
Wicked Witch Engine (common)
Book Slide (common)
Claws of the Viashino (common)
Curious Drake (common)
Rat Nest Ogre (common)
Evangelizing Aven (common)
Swamp (basic)