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.

Pardic Excessor R Creature – Dragon Flying At the beginning of each opponent's upkeep, that player chooses one – They can't cast spells this turn; or, Until the beginning of that player's next turn, whenever a permanent you control would deal damage to that player, it deals double that damage to that player instead. : Pardic Excessor gains +1/+0 until end of turn. 4/4	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.)	Masterful Gaze U Sorcery Target player reveals their hand. For each green creature in it, search through your library for a creature with power no greater than 2, reveal it, put it in your hand, then shuffle your library.	Capitulated Keldon Lands U Land Capitulated Keldon Lands enters the battlefield tapped. : Add to your mana pool. : Keldon Megaliths deals 1 damage to target player. Activate this ability only if an opponent has no cards in hand.	Monsivore Rex C Creature – Lhurgoyf First strike Monsivore Rex gets +1/+0 for each Mountain you control and for each Mountain in your graveyard. "Oh, Saffi! Must you overreact to -" - Hans Eriksson, last words. 0/1
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	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	Pull of Pyromancy C Enchantment When Pull of Pyromancy enters the battlefield, put a 3/3 Red Elemental creature token onto the battlefield. At the beginning of each player's upkeep, Pull of Pyromancy deals 1 damage to that player, unless he or she controls an Elemental.	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	Turn to Brambles C Instant Target creature becomes a 2/3 green Plant Wall with defender and ": Regenerate this creature." until end of turn. Wrap arms and roots together, be convulsed with grief, and bring back chaos out of shape. - Conrad Aiken, The Room
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	Thanatos Drake C Creature – Drake Flying , , Exile a card from your graveyard: Target player discards a card. Activate this ability only any time you could cast a sorcery. 2/4	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	Cursed Blade C Artifact – Equipment : Attach Cursed Blade to target creature. Equipped creature gets +1/+1. , Sacrifice Cursed Blade: Destroy the last creature Cursed Blade was equipped to.	Plains B Basic Land – Plains

Pardic Excessor (rare)
Filligreed Mirror (uncommon)
Masterful Gaze (uncommon)
Capitulated Keldon Lands (uncommon)
Monsivore Rex (common)
Coast Guarder (common)
Anti-Aura Acolyte (common)
Pull of Pyromancy (common)
Evangelizing Aven (common)
Turn to Brambles (common)
Savaen Blessing (common)
Thanatos Drake (common)
Shade of Prey (common)
Cursed Blade (common)
Plains (basic)