Multiverse Design Challenge: Virtual Booster

Riddler in the Clouds    M  Creature – Sphinx Flying Noncreature spells your opponents cast cost more to cast. Whenever an opponent casts a noncreature spell, you may draw a card. 5/6	Badland Warp Stone    U  Artifact Lands you control become Badlands, gain ": Add or to your mana pool.", and lose all other abilities. : Add or to your mana pool.	Canopic Jar    U  Artifact Whenever you sacrifice a creature, put an organ counter on Canopic Jar. Remove an organ counter from Canopic Jar: Add to your mana pool. Spend this mana only to cast mummy spells from your graveyard.
Silver Bullets    C  Sorcery – Thematic (Thematic – Silver Bullets can be cast from outside of the game.) As an additional cost to cast Silver Bullets, pay 2 life. Creatures opponent controls that have taken damage this turn, take 1 damage and cannot regenerate until end of turn.	Lift Driver    C  Unit – Human Pilot : Target unit is Orbital. What I put up, stays up. 1/1	Noble Grove    C  Creature – Treefolk Warrior Transform Noble Grove: Regenerate Broken Deadwood. 4/4 Broken Deadwood    C  Creature – Treefolk Coward At the beginning of your upkeep, lose 2 life. 3/3	Challenge # 002    C    Create a cycle of 2/2 creatures with maximum converted mana cost of (ie , , etc – though each card must have the same converted mana cost) each with a non keyword ability that links them in an obvious way. You can create them at any rarity but your entire cycle must be of the same rarity.
Arc Elemental    C  Creature – Elemental Trample 3/1	Undead Gaze    C  Instant Counter target spell, unless its controller pays . , Discard a card: Return Undead Gaze to your hand. Play this ability only during your upkeep. Cycling (, Discard this card: Draw a card.)	Yavimaya Firewurm    C  Creature – Wurm Trample 6/3	BW Morph Aura    C  Enchantment – Aura Enchant Permanent Morph (You may cast this face down as a 2/2 creature for 3. Put it on the stack face up for ) If BW Morph Aura is destroyed, destroy enchanted permanent.
Land of the Sphinx    C  Basic Land – Sphinx : Discard a card : What. Do. You. Know. NOW. Illus. Stampydragon	Pale Warrior    C  Creature – Horror Warrior "Life in the Wastes has made the Pale Ones tough beyond anything we see in the Ravines. If only they were viable breeding stock." — Rul of the Terugan College of Life 2/2	Challenge # 018    B    Design 3 cards with a casting cost that includes the "purple" mana symbol. See Comments for more details.	Wall  T  Token Artifact Creature – Wall Defender 0/3

Riddler in the Clouds (mythic)
Badland Warp Stone (uncommon)
Canopic Jar (uncommon)
Decagon of Rage: Blue (uncommon)
Silver Bullets (common)
Lift Driver (common)
Noble Grove (common)
Challenge # 002 (common)
Arc Elemental (common)
Undead Gaze (common)
Yavimaya Firewurm (common)
BW Morph Aura (common)
Land of the Sphinx (common)
Pale Warrior (common)
Challenge # 018 (basic)
Wall (token)