Anafenza, Kin-Tree Spirit | Legendary Creature | Spirit Soldier | Whenever another nontoken creature enters the battlefield under your control, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.) | Ryan Yee
Gleam of Authority | Enchantment | Aura | Enchant creature
Enchanted creature gets +1/+1 for each +1/+1 counter on other creatures you control.
Enchanted creature has vigilance and "{W}, {T}: Bolster 1." (To bolster 1, choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.) | Jakub Kasper
Hidden Dragonslayer | Creature | Human Warrior | Lifelink
Megamorph {2}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Hidden Dragonslayer is turned face up, destroy target creature with power 4 or greater an opponent controls. | Anastasia Ovchinnikova
Radiant Purge | Instant | | Exile target multicolored creature or multicolored enchantment. | Igor Kieryluk
Mirror Mockery | Enchantment | Aura | Enchant creature
Whenever enchanted creature attacks, you may create a token that's a copy of that creature. Exile that token at end of combat. | Ryan Alexander Lee
Stratus Dancer | Creature | Djinn Monk | Flying
Megamorph {1}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Stratus Dancer is turned face up, counter target instant or sorcery spell. | Anastasia Ovchinnikova
Damnable Pact | Sorcery | | Target player draws X cards and loses X life. | Zack Stella
Silumgar Assassin | Creature | Human Assassin | Creatures with power greater than Silumgar Assassin's power can't block it.
Megamorph {2}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Silumgar Assassin is turned face up, destroy target creature with power 3 or less an opponent controls. | Yohann Schepacz
Commune with Lava | Instant | | Exile the top X cards of your library. Until the end of your next turn, you may play those cards. | Ryan Barger
Dragon Tempest | Enchantment | | Whenever a creature with flying enters the battlefield under your control, it gains haste until end of turn.
Whenever a Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control. | Willian Murai
Ire Shaman | Creature | Orc Shaman | Menace (This creature can't be blocked except by two or more creatures.)
Megamorph {R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Ire Shaman is turned face up, exile the top card of your library. Until end of turn, you may play that card. | Jack Wang
Assault Formation | Enchantment | | Each creature you control assigns combat damage equal to its toughness rather than its power.
{G}: Target creature with defender can attack this turn as though it didn't have defender.
{2}{G}: Creatures you control get +0/+1 until end of turn. | Kieran Yanner
Avatar of the Resolute | Creature | Avatar | Reach, trample
Avatar of the Resolute enters the battlefield with a +1/+1 counter on it for each other creature you control with a +1/+1 counter on it. | Jeff Simpson
Den Protector | Creature | Human Warrior | Creatures with power less than Den Protector's power can't block it.
Megamorph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Den Protector is turned face up, return target card from your graveyard to your hand. | Viktor Titov
Dromoka's Command | Instant | | Choose two —
• Prevent all damage target instant or sorcery spell would deal this turn.
• Target player sacrifices an enchantment.
• Put a +1/+1 counter on target creature.
• Target creature you control fights target creature you don't control. | James Ryman
Atarka's Command | Instant | | Choose two —
• Your opponents can't gain life this turn.
• Atarka's Command deals 3 damage to each opponent.
• You may put a land card from your hand onto the battlefield.
• Creatures you control get +1/+1 and gain reach until end of turn. | Chris Rahn