Mashup: the Gathering Workbench: Virtual Booster

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.	Queen Riftwurm    U  Creature – Fairy Wurm Vanishing 5 When Queen Riftwurm enters the battlefield, remove a time counter from it for every used to pay its cost. 6/5	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	Coffertooth Rats    U  Creature – Rat Whenever a Rat enters the battlefield under your control, untap all Rats you control. They gain Intimidate until end of turn. With each new member, their frenzy increases. The rat sense of community fails, as sharp teeth replace sharp wits. 2/1	Desperate Measure    U  Instant The next 3 damage that a source of your choice would deal to you and/or permanents you control this turn is dealt to target creature you control instead. Reverb (Whenever you cast an instant or a sorcery, you may cast Desperate Measure from your graveyard for .)
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.	Suddenly Solifuge    U  Instant Choose one or more — Target creature gains haste until end of turn; or target creature's power becomes 4 until end of turn; and/or target creature's toughness becomes 1 until end of turn	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.	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."
Steadfast Assault    C  Sorcery Deal 1 damage to all creatures your opponents control. Creatures you control get +0/+3 until end of turn. Ha! Conviction? Your 'noble spirit' might win wars, but first you'll need to keep your flesh intact.	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	Wheeler Gunnarson    M  Legendary Creature – Giant Trample Whenever Wheeler Gunnarson deals combat damage to a player, tap all that players lands. Wheeler Gunnarson deals damage to that player equal to the number of lands he or she controls, and you gain that much life. 5/5	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	Wreckage Skimmer    U  Creature – Cephalid Wizard When Wreckage Skimmer enters the battlefield, return an instant or sorcery from your graveyard to your hand. , Shuffle Wreckage Skimmer into your library: Prevent all combat damage damage that would be dealt this turn. 2/3

Niven's Battlestone (uncommon)
Queen Riftwurm (uncommon)
Catching Searblades (uncommon)
Coffertooth Rats (uncommon)
Desperate Measure (uncommon)
Awakened Mosaic (uncommon)
Suddenly Solifuge (uncommon)
Creative Eyry (common)
Cho-Arrim Augury (common)
Unholy Pact (common)
Steadfast Assault (common)
Unrefine (uncommon)
Wheeler Gunnarson (mythic)
Scalawag Support Team (uncommon)
Wreckage Skimmer (uncommon)