Man-o'-War

When Man-o'-War enters, return target creature to its owner's hand.

Sphinx of the Steel Wind

Flying, first strike, vigilance, lifelink, protection from red and from green

Tidehollow Sculler

When Tidehollow Sculler enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card.
When Tidehollow Sculler leaves the battlefield, return the exiled card to its owner's hand.

Meddling Mage

As Meddling Mage enters, choose a nonland card name.
Spells with the chosen name can't be cast.

Plains

Condemn

Put target attacking creature on the bottom of its owner's library. Its controller gains life equal to its toughness.

Island

Wall of Denial

Defender, flying
Shroud (This creature can't be the target of spells or abilities.)

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Countersquall

Counter target noncreature spell. Its controller loses 2 life.

Silverquill Silencer

As Silverquill Silencer enters, choose a nonland card name.
Whenever an opponent casts a spell with the chosen name, they lose 3 life and you draw a card.

Dromar's Cavern

When Dromar's Cavern enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {W}, {U}, or {B}.

Recoil

Return target permanent to its owner's hand. Then that player discards a card.

Peek

Look at target player's hand.
Draw a card.

Drogskol Reaver

Flying, double strike, lifelink
Whenever you gain life, draw a card.

Council of the Absolute

As Council of the Absolute enters, choose a noncreature, nonland card name.
Your opponents can't cast spells with the chosen name.
Spells with the chosen name you cast cost {2} less to cast.

Arcane Sanctum

Arcane Sanctum enters tapped.
{T}: Add {W}, {U}, or {B}.

Swamp

Despise

Target opponent reveals their hand. You choose a creature or planeswalker card from it. That player discards that card.

Nebuchadnezzar

{X}, {T}: Choose a card name. Target opponent reveals X cards at random from their hand. Then that player discards all cards with that name revealed this way. Activate only during your turn.