Cost of Progress: 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.
Petra, Temple of the Purists
 
 R 
Legendary Land
{t}, Add {1} to your mana pool.

Pay two life, Add one mana of any color to your mana pool.
Sacrifice a creature, Add one mana of any color to your mana pool.
Illus. Phillip Straub
Fire Sigil
{1}{r}
 
 U 
Enchantment – Sigil
Fire Sigil enters the battlefield with three fire counters on it.
Whenever a creature an opponent control attacks you or a creature you control, take one fire counter off of Fire Sigil; Fire Sigil deals 1 damage to the attacking creature.
When Fire Sigil has zero fire counters on it, sacrifice it.
Illus. Steve Argyle
Purge the Unethical
{1}{b}
 
 U 
Instant
Destroy target scientist, mutant, or clone.
Reports say that several of the lab assistants have gone missing.
Illus. Samuel Araya
Beneficial Mutation
{2}{x}
 
 U 
Enchantment
Mutated Terrain enters the battlefield as a copy of target basic land you control.
-Needs Flavor Text-
Illus. Uwe Jarling
 
 
No more commons
Overwhelming Ooze
{1}{r}
 
 C 
Sorcery
Destroy target creature. That creature's controller puts a 2/2 Ooze token on the battlefield under their control.
-Needs Flavor Text-
Illus. Natascha Roeoesli
Unstable Genome
{3}
 
 C 
Enchantment
When unstable genome enters the battlefield, roll a six-sided die. Put X charge counters on Unstable Genome, where X is the number rolled.
All clones get +X/+X, where X is the number of charge counters on Unstable Genome
-Needs Flavor Text-
Illus. Richard Grey
Stoneserpent Sentry
{w}{2}
 
 C 
Creature – Human-Snake Hybrid
"The Stoneserpents are interesting creatures. Scientists in the lab mixed themselves with snakes and this is what that got." Laboratory Tour-Guide
Illus. Quinton Hoover
3/3
 
 
No more commons
Flightless Kilpin
{g/u}
 
 C 
Creature – Bird
"While flightless, the Kilpins have a thick layer of blubber."
Excerpt from "Creatures of Shelt"
Illus. Roberto Goring
0/2
 
 
No more commons
 
 
No more commons
 
 
No more commons
Corrosive Anurid
{b}{2}
 
 C 
Creature – Anurid
Reach
Infect
"Coming from the swamp, the Corrosive Anurids are able to spit highly acidic liquid at their enemies"
Excerpt from "Creatures of Shelt"
Illus. Ron Spencer
2/2
Plains
 
 B 
Basic Land – Plains

Petra, Temple of the Purists (rare)
Fire Sigil (uncommon)
Purge the Unethical (uncommon)
Beneficial Mutation (uncommon)
Overwhelming Ooze (common)
Unstable Genome (common)
Stoneserpent Sentry (common)
Flightless Kilpin (common)
Corrosive Anurid (common)
Plains (basic)