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.

Staff of Calm R Artifact Staff of Calm enters the battlefield with X healing counters on it. You can't lose the game and your opponent can't win the game. Whenever damage would be dealt to you, instead remove that many healing counters from Staff of Calm. If there are no healing counters on Staff of Calm, sacrifice it, then shuffle your graveyard into your library.	Filligreed Mirror U Sorcery Choose one – Put a token copy of all non-token creatures you control on the battlefield; or put a token copy of all token creatures you control on the battlefield. Entwine (Choose both, if you pay the entwine cost.)	Knight of the Periphery U Creature – Thalakos Knight Knight of the Periphery can't be blocked except by unblockable creatures or by creatures named Knight of the Periphery. 'Never', Mirri, is the same as 'Not yet'. -Ertai, Wizard Adept 4/3	Villainous Heart U Creature – Demon When Villainous Heart enters the battlefield, sacrifice an Ogre, or sacrifice Villainous Heart. When Villainous Heart attacks, all Ogres and Demons get +2/+2 until end of turn. : Regenerate Villainous Heart. 3/2	Corona of Power C Snow Snow Snow Enchantment – Aura Enchant green creature. Enchanted creature gains ": Deal damage to target player equal to this creature's power. I call on forest's strength – on every thorn on every bramble – for their mass to break our enemies. -from The Fire within All
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	Savaen Blessing C Enchantment – Aura Enchant Land Enchanted Land gains protection from other enchantments. Sacrfice Savaen Blessing: Destroy target enchantment. "When the land is pure, the magic will follow." -Sidaen of Savaen	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	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.	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
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	Curious Drake C Creature – Drake Flying Whenever Curious Drake deals damage to an opponent, you may draw a card. No bird soars too far, if he soars to find his desire. 2/2	Prismatic Surge C Instant As an additional cost to casting Prismatic Surge, discard a card. Target creature gets +X/+0 where X is equal to the discarded card's converted mana cost, and has protection from the colors of the discarded card.	Unloved Devil C Creature – Devil Mercenary Flying It's hard to call it flying, the way they seem to fall out of the sky, collapsing on their prey. 1/1	Swamp B Basic Land – Swamp

Staff of Calm (rare)
Filligreed Mirror (uncommon)
Knight of the Periphery (uncommon)
Villainous Heart (uncommon)
Corona of Power (common)
Anti-Aura Acolyte (common)
Savaen Blessing (common)
Evangelizing Aven (common)
Steadfast Assault (common)
Walking Nightmuse (common)
Shade of Prey (common)
Curious Drake (common)
Prismatic Surge (common)
Unloved Devil (common)
Swamp (basic)