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.

Stone Thrower R Creature – Ogre Barbarian At the beginning of your upkeep you may search through your library for a Sorcery that targets a land, cast it without paying its mana cost targeting a land, then shuffle your library. "Gorgril sad. No one ever want to play 'catch'." 4/4	Haunted Mine U Artifact Whenever an opponent targets a permanent they do not control, each player draws a card. Legend has it that the mine howls out the last words of those who would have died inside.	Mace of Ideas U Artifact – Equipment Equip Equipped creature gets +1/+1 for each land type among all lands you control. Ideas, like weapons, can only realize their true potential when they are shared.	Capitulated Keldon Lands U Land Capitulated Keldon Lands enters the battlefield tapped. : Add to your mana pool. : Keldon Megaliths deals 1 damage to target player. Activate this ability only if an opponent has no cards in hand.	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
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.	Kyren Tax Collector C Creature – Goblin Advisor Haste If an opponent controls more lands than you, you may play Kyren Tax Collector without paying its mana cost. In Mercandia, there's a tax for future land you will buy. 1/1	Unholy Pact C Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. When enchanted creature dies, return that card to the battlefield under your control. "You know how it is. Everyday it's 'trade my soul this', and 'give me more power that'. Of course I don't have more time to visit, Mum."	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	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.
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.	Blightsoil Druid C Creature – Elf Druid , Pay 1 life: Add to your mana pool. "The land belongs to the murk as far as the eye can see. The deeper you sink, the more you can see." 1/2	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.	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.	Swamp B Basic Land – Swamp

Stone Thrower (rare)
Haunted Mine (uncommon)
Mace of Ideas (uncommon)
Capitulated Keldon Lands (uncommon)
Talruun Firebrand (common)
Learned Response (common)
Kyren Tax Collector (common)
Unholy Pact (common)
Krimson Kount (common)
Cho-Arrim Augury (common)
Book Slide (common)
Blightsoil Druid (common)
Curio Curse (common)
Steaming Sink Pits (common)
Swamp (basic)