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.

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.	Scalawag Support Team U Creature – Human Pirate Defender , : Deal 1 damage to each creature with a converted mana cost of X. Those creatures cannot attack this turn. "Lower! Lower! Aim for the docks!" -Ramireze DePietro 4/4	Protect the Master U Instant – Trap If your opponent controls an attacking creature with power greater than the number of cards in your hand, you may pay rather than pay Protect the Master's mana cost. Put two 3/3 white Djinn creature tokens with flying into play.	Unrefine U Instant The next time target creature would deal combat damage to a player this turn, instead target opponent reveals that many cards from his or her hand and you choose one of them. That player discards that card and you draw a card. "There is evil in all things. Even innocence." -Cabal Patriarch	Creative Eyry C Instant When you cast Creative Eyry, cannot be greater than the number of flying creatures you control. Draw X cards.
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.	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	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	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	Monsivore Rex C Creature – Lhurgoyf First strike Monsivore Rex gets +1/+0 for each Mountain you control and for each Mountain in your graveyard. "Oh, Saffi! Must you overreact to -" - Hans Eriksson, last words. 0/1
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.	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.	Snowball Fight C Instant Until end of turn, blocking creatures neither deal, nor receive combat damage, and gain ": Deal 1 damage to target attacking creature".	Mountain B Basic Land – Mountain

Tectonic Stasis (rare)
Scalawag Support Team (uncommon)
Protect the Master (uncommon)
Unrefine (uncommon)
Creative Eyry (common)
Cho-Arrim Augury (common)
Corona of Power (common)
Talruun Firebrand (common)
Shade of Prey (common)
Monsivore Rex (common)
Learned Response (common)
Plume Serpent (common)
Steaming Sink Pits (common)
Snowball Fight (common)
Mountain (basic)