Multiverse Design Challenge: Virtual Booster

[-] [+]
15 random cards from the set.
You could alternatively have a booster in the usual rarity pattern.
 M 
Planeswalker – Varlan
+1Choose up to three target creatures. Put a +1/+1 counter on each of them.
-2For each counter on target permanent, put another of those counters on that permanent.
-20For each creature, put a token onto the battlefield that’s a copy of that creature.
4
 U 
Battlefield
(Creatures enter the most recent battlefield played. Creatures can't block creatures on different battlefields.)
Creature on Fury Grounds get +3/+0.
Plane – Omniras
When you planeswalk to The Hallowed Halls, each player chooses a color. Each player has protection from the color that he or she chose.
Whenever you roll {chaos}, change target player's chosen color.
 R 
Sorcery
Buyback {2}{b}
Search your library for a sorcery, reveal it, put it in your hand, then shuffle your library.
Creature – Human Archer
{t}: Sky Archer deals 1 damage to target blocking or blocked creature.
1/1
 M 
Creature – Giant Warrior
16/16
Sorcery
Draw six cards.
 R 
Artifact
At the beginning of each player's upkeep, for each charge counter on Uncontrolled Overloader, that player activates an ability of an artifact he or she controls.
{t}: You and target player each put an artifact token named Grinder onto the battlefield with "{t}: Lose 1 life." Then put a charge counter on Uncontrolled Overloader.
 R 
Enchantment
{1}, Sacrifice a creature: Search through your library for a creature with the same converted mana cost and creature type, put it onto the battlefield, then shuffle your library.
 R 
Creature – Sphinx
At the beginning of your upkeep, each opponent chooses 'purity' or 'deviance'.
At the beginning of your end step, if you cast a non-green spell, put a +1/+1 counter on each creature you control for each opponent that chose 'purity'. If you cast no non-green spells, put a +1/+1 counter on each creature you control for each opponent that chose 'deviance'.
3/3
 M 
Creature – Angel
Flying, Lifelink
If Archangel of Light would enter the battlefield from anywhere but your hand, exile it instead.
When Archangel of Light enters the battlefield, you gain 1 life for each card in your graveyard, then shuffle your graveyard into your library.
5/5
 M 
Legendary Creature – Zombie Warrior
At the beginning of your upkeep, you may exile a creature card from your graveyard. If you do, put a +1/+1 counter on target Zombie creature.
Whenever Grimgrin Risen attacks, defending player sacrifices a creature and you put a 2/2 black Zombie creature token onto the battlefield.
4/4
Challenge
The Triple Mash. Take a card from Cog A in the comment section, a card from Cog B and a a card from Cog C and mash them together to form a new card.
{2}{r/w}
 
Sorcery
Target player blocks with exactly two creatures this turn.
Conquer
{4}{w/b}{w/b}
 
Sorcery
Destroy all creatures and planeswalkers.
Challenge
Create an enemy manland!
Bonus: Create a full cycle.
 T 
Token Land – Cave
{t}: Add {c} to your mana pool.

Varlan the Grower (mythic)
Fury Grounds (uncommon)
The Hallowed Halls (none)
Deal with Devils (rare)
Sky Archer (none)
Biggest Giant (mythic)
I know Kung Fu (none)
Uncontrolled Overloader (rare)
Evolutionary Branch (rare)
Sprightly Sphinx (rare)
Archangel of Light (mythic)
Grimgrin Risen (mythic)
Challenge # 097 (none)
Command // Conquer (none)
Challenge # 137 (none)
Cave (token)