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.

Tectonic Stasis R Enchantment At the beginning of your upkeep, pay or sacrifice Tectonic Stasis. Whenever a land enters the battlefield, tap all lands its controller controls. Those lands don't untap during their controller's next untap step.	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	Necromancer's Echo U Creature – Skeleton Wizard Morph (You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.) When you turn Necromancer's Echo face up, return a creature from your graveyard to your hand. : Return Necromancer's Echo from your graveyard to the battlefield tapped and face down. 1/1	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.)	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
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.	Krimson Kount C Creature – Kobold Noble Whenever you cast a Kobold, put a Destiny counter on Krimson Kount. Remove a Destiny counter from Krimson Kount: Krimson Kount becomes a 3/4 Kobold Warrior Spirit until end of turn. 0/1	Holy Favor C Enchantment – Aura Enchant Creature Enchanted creature gets +2/+1. At end of turn, return Holy Favor to its owner's hand.	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	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
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	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.	Friend Ward C Enchantment – Aura Enchant creature Enchanted creature gains protection from its colors. This effect does not remove Friend Ward. "When you wield authority, there is no greater threat to yourself, than yourself." -The Lord of Atlantis	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.	Mountain B Basic Land – Mountain

Tectonic Stasis (rare)
Knight of the Periphery (uncommon)
Necromancer's Echo (uncommon)
Filligreed Mirror (uncommon)
Shade of Prey (common)
Explosive Shoots (common)
Krimson Kount (common)
Holy Favor (common)
Thanatos Drake (common)
Kyren Tax Collector (common)
Savaen Blessing (common)
Harmonic Vale (common)
Friend Ward (common)
Prismatic Surge (common)
Mountain (basic)