Aerial Responder

City of Traitors

When you play another land, sacrifice City of Traitors.
{T}: Add {C}{C}.

Chalice of the Void

Chalice of the Void enters with X charge counters on it.
Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell.

Chrome Mox

Imprint — When Chrome Mox enters, you may exile a nonartifact, nonland card from your hand.
{T}: Add one mana of any of the exiled card's colors.

Plains

Daru Warchief

Soldier spells you cast cost {1} less to cast.
Soldier creatures you control get +1/+2.

Palace Jailer

When Palace Jailer enters, you become the monarch.
When Palace Jailer enters, exile target creature an opponent controls until an opponent becomes the monarch.

Ancient Tomb

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

Enlistment Officer

First strike
When Enlistment Officer enters, reveal the top four cards of your library. Put all Soldier cards revealed this way into your hand and the rest on the bottom of your library in any order.

Aegis of the Gods

You have hexproof. (You can't be the target of spells or abilities your opponents control.)

Faerie Macabre

Flying
Discard Faerie Macabre: Exile up to two target cards from graveyards.

Cavern of Souls

As Cavern of Souls enters, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Thalia, Guardian of Thraben

First strike
Noncreature spells cost {1} more to cast.

Warping Wail

({C} represents colorless mana.)
Choose one —
• Exile target creature with power or toughness 1 or less.
• Counter target sorcery spell.
• Create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

Thorn of Amethyst

Noncreature spells cost {1} more to cast.

Sorcerous Spyglass

As this artifact enters, look at an opponent's hand, then choose any card name.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Holy Light

Nonwhite creatures get -1/-1 until end of turn.

Suppression Field

Activated abilities cost {2} more to activate unless they're mana abilities.

Thalia, Heretic Cathar

First strike
Creatures and nonbasic lands your opponents control enter tapped.

Containment Priest

Flash
If a nontoken creature would enter and it wasn't cast, exile it instead.

Fairgrounds Warden

When Fairgrounds Warden enters, exile target creature an opponent controls until Fairgrounds Warden leaves the battlefield.

Karakas

{T}: Add {W}.
{T}: Return target legendary creature to its owner's hand.

Armageddon

Recruiter of the Guard

When Recruiter of the Guard enters, you may search your library for a creature card with toughness 2 or less, reveal it, put it into your hand, then shuffle.

Preeminent Captain

First strike (This creature deals combat damage before creatures without first strike.)
Whenever Preeminent Captain attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking.