Mashup: the Gathering Workbench: Virtual Booster

Righteousness Elemental    R  Creature – Elemental When Righteousness Elemental enters the battlefield, put X +1/+1 counters on it, where X is equal to the amount of damage dealt to all opponents this turn. Then, if an opponent controls a black creature, Righteousness Elemental gains haste and after this main phase, there is an additional combat phase followed by an additional main phase. 0/0	Den Wrecker    U  Creature – Wurm At the beginning of your upkeep, you may return a Wurm from your graveyard to your hand. 5/4	Sapling Grove    U  Land , : Add to your mana pool. Level Up If Sapling Grove has 3 level counters, it becomes a 3/3 green Treefolk with trample and "Remove a level counter from Sapling Grove: Sapling Grove gets +2/+2 until end of turn." (It's still a land.)	Abductive Discovery    U  Sorcery Choose one or both – Return target sorcery card from your graveyard to your hand; and/or return a card at random from your graveyard to your hand. "No one can predict when or where lightning will strike. I'm good at guessing, though."	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.
Wicked Witch Engine    C  Artifact Creature – Elemental Horror : Target player dealt damage by Wicked Witch Engine this turn loses 1 life. 2/2	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	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	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.
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	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	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	Mishra's Rite    C  Instant Tap two target lands, then add to your mana pool. Draw a card.	Swamp    B  Basic Land – Swamp

Righteousness Elemental (rare)
Den Wrecker (uncommon)
Sapling Grove (uncommon)
Abductive Discovery (uncommon)
Book Slide (common)
Wicked Witch Engine (common)
Plume Serpent (common)
Turn to Brambles (common)
Unholy Pact (common)
Steadfast Assault (common)
Evangelizing Aven (common)
Friend Ward (common)
Rat Nest Ogre (common)
Mishra's Rite (common)
Swamp (basic)