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	Starlit Lion    C  Creaure – Cat Flash When Starlit Lion enters the battlefield, exile another target permanent you own until Starlit Lion leaves the battlefield. 3/2
Gideon's Protector    C  Creature – Human Soldier Defender Gideon's Protector can block an additional creature. Creatures your opponents control attack each combat if able. 1/6	Wilted Learning    C  Instant Counter target spell unless its controller pays . If that player does, draw a card.	Rotting Cavern    C  Land – Swamp Mountain (: Add or to your mana pool.) When Rotting Cavern enters the battlefield, sacrifice it unless you pay .	Conscious Erosion    C  Instant Target player draws two cards, then discards two cards. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)	Twist Bug    C  Creature – Insect Whenever Twist Bug deals damage to a player, that player discards that many cards at random, then draws a card for each card discarded this way. 2/1
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	Kurndesh of the Hills    C  Legendary Creature – Giant First strike When Kurndesh of the Hills enters the battlefield, it deals 4 damage to each nonlegendary creature. Other legendary creatures you control get +2/+0 and have first strike. 6/4	Mystic Faerie    C  Creature – Faerie Flying Enlighten — Whenever you draw a card, Mystic Faerie gets +1/+1 until end of turn. 0/1	Isperia's Den    C  Legendary Land – Plains Island (: Add or to your mana pool.)	Archon of the Sword    C  Creature – Archon Flying Whenever Archon of the Sword or another creature you control leaves the battlefield, choose a card type. Each player sacrifices a permanent of that type. 4/4

Singularity (rare)
Starlit Lion (common)
Gideon's Protector (common)
Wilted Learning (common)
Rotting Cavern (common)
Conscious Erosion (common)
Twist Bug (common)
Tsemone of the Void (common)
Kurndesh of the Hills (common)
Mystic Faerie (common)
Isperia's Den (common)
Archon of the Sword (common)