Mashup: the Gathering Workbench: Virtual Booster

This booster was generated with modern collation since the cardset contains mythics: 1 rare / mythic, 3 uncommons, 10 commons, 1 basic land.
You could alternatively have 15 random cards regardless of rarity.

Infernal Council R Creature – Demon Advisor As Infernal Council enters the battlefield, an opponent may make you draw eight cards. If no player does, it enters the battlefield with eight +1/+1 counters on it. Whenever Infernal Council attacks or blocks, you may remove any number of counters from it. If you do, deal that much damage to all other creatures. 0/0	Soul of the Machine U Enchantment Whenever an opponent casts an artifact, gain 3 life. Whenever an opponent activates an ability on an artifact, gain 3 life.	Seasonal Front U Sorcery Choose one – Search your library for X basic lands, put them onto the battlefield, tapped, then shuffle your library; or, destroy X target lands. Entwine (Choose both if you pay the entwine cost.)	Volrath's Whim U Sorcery When you cast Volrath's Whim, any player may pay 5 life. If a player does, counter Volrath's Whim. Target player puts a card from their hand on top of their library. Then, look at the top four cards of that player's library and exile three of them.	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
Explosive Shoots C Sorcery As an additional cost to cast Explosive Shoots, sacrifice a land. Search through your library for a basic land, put it onto the battlefield, then shuffle your library. Each player gains 1 life for each basic land type they control, then Explosive Shoots deals 3 damage to each player.	Curio Curse C Enchantment – Aura Enchant Creature When enchanted creature deals damage to a player, look at the top three cards of your library, put one in your hand, put the rest back in any order, then sacrifice Curio Curse. Enchanted creature must attack if able.	Anti-Aura Acolyte C Creature – Elemental Shaman Protection from enchantments , Discard Anti-Aura Acolyte: Target creature gains protection from enchantments until end of turn. 2/2	Harmonic Vale C Enchantment As Harmonic Vale enters the battlefield, choose a color. Whenever a player casts a spell of the chosen color, you may pay . If you do, you gain 2 life.	Shade of Prey C Creature – Bird Shade Flying Sacrifice a land: Return Shade of Prey to its owner's hand. : Shade of Prey gets +1/+1 until end of turn. 2/1
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	Coast Guarder C Creature – Bird Soldier Scout Flying Whenever an opponent casts a creature spell, put a +1/+1 counter on Coast Guarder. 2/1	Kyren Tax Collector C Creature – Goblin Advisor Haste If an opponent controls more lands than you, you may play Kyren Tax Collector without paying its mana cost. In Mercandia, there's a tax for future land you will buy. 1/1	Walking Nightmuse C Creature – Spirit Creatures can't block Walking Nightmuse unless their controller discards a card for each creature he or she controls that's blocking Walking Nightmuse. 4/2	Swamp B Basic Land – Swamp

Infernal Council (rare)
Soul of the Machine (uncommon)
Seasonal Front (uncommon)
Volrath's Whim (uncommon)
Evangelizing Aven (common)
Explosive Shoots (common)
Curio Curse (common)
Anti-Aura Acolyte (common)
Harmonic Vale (common)
Shade of Prey (common)
Rat Nest Ogre (common)
Coast Guarder (common)
Kyren Tax Collector (common)
Walking Nightmuse (common)
Swamp (basic)