The Butterfly Effect: 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.
{5}{w}{w}
 
 R 
Enchantment
All slaves no longer have the "slave" tag.
Creatures you control gain +1/+3.
 U 
Artifact – Cannon
Sacrifice a Slave : Deal 1 damage to target creature or player.
 U 
Spell – Instant
Sacrifice X Slaves: Deal X – 1 damage to target creature or player.
If e = mc^2, we're getting a lot of energy! – Bognok , head researcher.
Sadly, Bognok forgot to take goblin stupidity into account.
 U 
Creature – Dragon
Flying
During your upkeep, sacrifice a slave. Otherwise, sacrifice Voracious Dragon.
Feed it.
4/4
 C 
Creature – Overseer
{t}: Exile a slave and put two time counters on it. At the end of your turn, remove a time counter. When it has no time counters, return it to the battlefield tapped.
1/2
 
 
No more commons
 
 
No more commons
 
 
No more commons
 
 
No more commons
 C 
Creature – Goblin Slave
"You're an ambiguous goblin. Nobody cares about your name." – Goblald Drumpf
1/1
 C 
Spell – Instant
Gain control of target creature. It's now a 1/1 Slave in addition to its other types.
 C 
Creature – Human
Slaves have protection from Public Defender.
3/3
 C 
Sorcery
As an additional cost, sacrifice X slaves.
Gain {x}{x} or X mana of any color of your choice.
 C 
Creature – Slave Goblin
The next time you would sacrifice a Slave [to pay a cost] this turn, you may pay {r} instead.
How to Make Explosions (Before you Die) by X. Plo Juns.
1/2
Island
 
 B 
Basic Land – Island

Freedom (rare)
Goblin Blast Cannon (uncommon)
Goblin Laser (uncommon)
Voracious Dragon (uncommon)
Cruel Overseer (common)
Ambiguous Goblin (common)
Press into Labor (common)
Public Defender (common)
Work Till Death (common)
Goblin Engineer (common)
Island (basic)