Link's First Custom Cube: Virtual Booster

Singularity    R  Enchantment When Singularity enters the battlefield, exile all other nonland permanents until Singularity leaves the battlefield.	No more uncommons	No more uncommons	No more uncommons	Foremost Riddler    C  Creature – Sphinx Flying Enlighten — Foremost Riddler costs less to cast for each card you've drawn this turn. Whenever a Sphinx creature you control becomes blocked, you Gain a victory counter. (A player with 10 or more victory counters wins the game.) 4/3
Tamiyo's Calligraphy Pen    C  Artifact , Tap an untapped creature you control: Target player puts the top card of his or her library into his or her graveyard. : Draw a card. Each creature you tap while activating this ability pays for or one mana of that creature's color.	Eternity Canvas    C  Enchantment At the beginning of each player's upkeep, that player exiles the top two cards of his or her library. Until end of turn, that player may play cards exiled this way. Paint the horizon.	Earth-Heart Dryad    C  Creature – Dryad You may have Earth-Heart Dryad enter the battlefield tapped as a copy of any land on the battlefield. 1/1	Varlan's Garden    C  Legendary Land – Forest Island (: Add or to your mana pool.)	Sparrow Griffin    C  Creature – Griffin Flying Whenever a creature enters the battlefield under an opponent's control, return Sparrow Griffin to its owner's hand. 2/1
Bastioned Bliss    C  Enchantment At the beginning of each end step, if you control a creature with defender, put a +1/+1 counter on target creature, then put a 1/1 white Spirit creature token with flying onto the battlefield.	Transmogrify    C  Instant Exile target nonland permanent an opponent controls. That player exiles cards from the top of his or her library until he or she reveals a creature card, then puts that card onto the battlefield.	Crystalline Fields    C  Land – Plains Island (: Add or to your mana pool.) When Crystalline Fields enters the battlefield, sacrifice it unless you pay .	Tsemone of the Void    C  Planeswalker – Tsemone +1 Put a 1/1 colorless Other creature token with flying onto the battlefield. -2 Each player sacrifices a nonland permanent. -5 For each player, return target permanent card from that player's graveyard to the battlefield under your control. 2	Darry, Steadfast Warden    C  Legendary Creature – Kithkin First strike, protection from creatures with power 3 or greater Whenever a creature with power 2 or less enters the battlefield, you gain 1 life. 2/1

Singularity (rare)
Foremost Riddler (common)
Tamiyo's Calligraphy Pen (common)
Eternity Canvas (common)
Earth-Heart Dryad (common)
Varlan's Garden (common)
Sparrow Griffin (common)
Bastioned Bliss (common)
Transmogrify (common)
Crystalline Fields (common)
Tsemone of the Void (common)
Darry, Steadfast Warden (common)