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.

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	Tectonic Stasis R Enchantment At the beginning of your upkeep, pay or sacrifice Tectonic Stasis. Whenever a land enters the battlefield, tap all lands its controller controls. Those lands don't untap during their controller's next untap step.	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.	Smoke Spirit U Creature – Elemental : Smoke Spirit gets +1/+0 until end of turn. : Counter target spell unless its controller pays . is equal to Smoke Spirit's power. 1/3	Graveburst U Sorcery Return a creature from your graveyard to the battlefield, then tap it unless you control a Mountain. That creature gains haste until end of turn, and is a black Zombie in addition to its other types.
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.	Friend Ward C Enchantment – Aura Enchant creature Enchanted creature gains protection from its colors. This effect does not remove Friend Ward. "When you wield authority, there is no greater threat to yourself, than yourself." -The Lord of Atlantis	Talruun Firebrand C Creature – Minotuar Warrior When Talruun Firebrand enters the battlefield, it deals 3 damage to all players. Quiet! I cannot promise victory for our tribe, but I will promise an end to the fighting! 3/3	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.	Wicked Witch Engine C Artifact Creature – Elemental Horror : Target player dealt damage by Wicked Witch Engine this turn loses 1 life. 2/2
Creative Eyry C Instant When you cast Creative Eyry, cannot be greater than the number of flying creatures you control. Draw X cards.	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	Thanatos Drake C Creature – Drake Flying , , Exile a card from your graveyard: Target player discards a card. Activate this ability only any time you could cast a sorcery. 2/4	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	Swamp B Basic Land – Swamp

Turn to Brambles (common, foil)
Tectonic Stasis (rare)
Awakened Mosaic (uncommon)
Smoke Spirit (uncommon)
Graveburst (uncommon)
Cho-Arrim Augury (common)
Friend Ward (common)
Talruun Firebrand (common)
Steaming Sink Pits (common)
Wicked Witch Engine (common)
Creative Eyry (common)
Rat Nest Ogre (common)
Thanatos Drake (common)
Corona of Power (common)
Swamp (basic)