Yet another card dump (Circeus's): Virtual Booster

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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.
Boros Command
{r}{r}{w}{w}
 
 R 
Sorcery
Choose two — Boros Command deals 2 damage to target creature and you gain 2 life; or untap target creature and after this phase, there is an additional combat phase; or prevent all damage that would be dealt to target creature this turn; or target creature can't block this turn.
Freezer Burns
{1}{u}{r}
 
 U 
Enchantment – Aura
Landlock (This aura comes into play attached also to a land with the same controller as its normal target.)
Enchant creature or artifact
Permanents this enchants don't untap during their controller's untap step.
Spellspore
{g}{g}
 
 U 
Creature – Fungus
Deathtouch, hexproof
1/3
Elven Falconeer
{2}{g}{g}
 
 U 
Creature – Elf Shaman
{t}: Gain control of target creature with flying if its power is less than Elven Falconeer’s.
2/2
Liliana's Experiment
{1}{b}
 
 C 
Sorcery
As an additional cost to cast Liliana's Experiment, sacrifice a creature.
Return target creature with power and toughness equal to those of the sacrificed creature from a graveyard to the battlefield.
Automatization
{g}
 
 C 
Artifact Enchantment – Aura
Enchant land.
Enchanted land has "{t}: Add {2} to your mana pool." If it is a nonbasic land, it has "{t}: Add {3} to your mana pool." instead.
Wisps of Will
{1}{u}
 
 C 
Creature – Spirit
Flying
When Wisps of Will leaves the battlefield, target creature gets -2/-0 until end of turn.
Gossamer (Whenever this creature blocks or becomes blocked, you may return it to your hand.)
1/1
Sudden Growth
{2}{g}{g}
 
 C 
Instant
Target creature gets +4/+4 and gains hexproof until end of turn.
Latch 3 – {1}{g} (If the last spell you cast this turn had a converted mana cost of 3 or higher, you may cast this spell for its latch cost.)
Snow Shaper
{2}{u}
 
 C 
Creature – Djinn Wizard
Flying
{1}{w}: Snow Shaper gets +0/+2 until end of turn.
2/1
Recoverer of Secrets
{1}{b}
 
 C 
Creature – Zombie
Whenever Recoverer of Secrets attacks, Spy on the defending player. (To spy, choose land or nonland, then reveal the top card of that player's library.)
2/2
Equalize
{1}{w}
 
 C 
Instant
Choose one or both —
• Destroy target enchantment.
• Prevent all damage unenchanted creatures would deal this turn.
Rainbow Grafter
{1}{g}
 
 C 
Creature – Elf
Whenever a land enters the battlefield under your control, it gains "{t}: Add one mana of any color to your mana pool." until end of turn.
1/1
Goldhoof Chelopter
{1}{w}
 
 C 
Creature – Pegasus
Flying, Protection from green
2/1
Twice-Reviewed Edict
{b}
 
 C 
Sorcery
Target player sacrifices a creature and draws a card.
Plains
 
 B 
Basic Land – Plains

Boros Command (rare)
Freezer Burns (uncommon)
Spellspore (uncommon)
Elven Falconeer (uncommon)
Liliana's Experiment (common)
Automatization (common)
Wisps of Will (common)
Sudden Growth (common)
Snow Shaper (common)
Recoverer of Secrets (common)
Equalize (common)
Rainbow Grafter (common)
Goldhoof Chelopter (common)
Twice-Reviewed Edict (common)
Plains (basic)