Silence

Your opponents can't cast spells this turn.

Stasis

Players skip their untap steps.
At the beginning of your upkeep, sacrifice this enchantment unless you pay {U}.

The Tabernacle at Pendrell Vale

All creatures have "At the beginning of your upkeep, destroy this creature unless you pay {1}."

Jokulhaups

Destroy all artifacts, creatures, and lands. They can't be regenerated.

Wrath of God

Destroy all creatures. They can't be regenerated.

Devastation

Nevinyrral's Disk

This artifact enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Impending Disaster

At the beginning of your upkeep, if there are seven or more lands on the battlefield, sacrifice this enchantment and destroy all lands.

Static Orb

As long as this artifact is untapped, players can't untap more than two permanents during their untap steps.

Armageddon

Child of Alara

Trample
When Child of Alara dies, destroy all nonland permanents. They can't be regenerated.

Day of Judgment

Obliterate

This spell can't be countered.
Destroy all artifacts, creatures, and lands. They can't be regenerated.

Bolas's Citadel

You may look at the top card of your library any time.
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Archon of Emeria

Flying
Each player can't cast more than one spell each turn.
Nonbasic lands your opponents control enter tapped.

Winter Orb

As long as this artifact is untapped, players can't untap more than one land during their untap steps.

Humility

All creatures lose all abilities and have base power and toughness 1/1.

Cursed Totem

Activated abilities of creatures can't be activated.

Void Winnower

Your opponents can't cast spells with even mana values. (Zero is even.)
Your opponents can't block with creatures with even mana values.

Kruphix, God of Horizons

Indestructible
As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.
You have no maximum hand size.
If you would lose unspent mana, that mana becomes colorless instead.

Angel's Grace

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Smoke

Players can't untap more than one creature during their untap steps.

Drannith Magistrate

Your opponents can't cast spells from anywhere other than their hands.

Apocalypse

Exile all permanents. You discard your hand.

Ravages of War

Grand Abolisher

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.