Mashup: the Gathering Workbench: Virtual Booster

Celestial Glider    R  Creature – Griffin Flying, vigilance Discard a card: Exile target flying creature blocking Celestial Glider. And up and up the Dragon flew, and up and up the Griffon. The air grew weak and breath was few, but neither one would give in. -From "Why Griffin Flies High" 4/4	Carpet of Lava    U  Enchantment Flash At the beginning of each phase, add X red mana to your mana pool, where X is equal to the number of Islands all opponents control. At the beginning of the end of turn, sacrifice Carpet of Lava.	Stone Geyser    U  Enchantment All lands gain "Whenever this land is tapped for mana, it deals 1 damage to a creature you control. Creatures dealt damage this way gain flying until end of turn." "Dragons can fly. Big deal. They can't fall like we do." —Oop, Goblin Sledder	Roiling Fire    U  Sorcery When you cast Roiling Fire, exile it from the game with X time counters on it. At the beginning of your upkeep, if Roiling Fire is exiled, remove a time counter from it. If you do, deal 5 damage to target creature.	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
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	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	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.	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	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
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	Prismatic Surge    C  Instant As an additional cost to casting Prismatic Surge, discard a card. Target creature gets +X/+0 where X is equal to the discarded card's converted mana cost, and has protection from the colors of the discarded card.	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.	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.	Mountain    B  Basic Land – Mountain

Celestial Glider (rare)
Carpet of Lava (uncommon)
Stone Geyser (uncommon)
Roiling Fire (uncommon)
Blightsoil Druid (common)
Curious Drake (common)
Corona of Power (common)
Book Slide (common)
Evangelizing Aven (common)
Krimson Kount (common)
Thanatos Drake (common)
Prismatic Surge (common)
Steadfast Assault (common)
Learned Response (common)
Mountain (basic)