Mana Vortex

Enchantment

When you cast this spell, counter it unless you sacrifice a land.
At the beginning of each player's upkeep, that player sacrifices a land.
When there are no lands on the battlefield, sacrifice Mana Vortex.

March of the Machines

Enchantment

Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value. (Equipment that's a creature can't equip a creature.)

Mystic Decree

World Enchantment

All creatures lose flying and islandwalk.

Naiad of Hidden Coves

Enchantment Creature — Nymph (2/3)

As long as it's not your turn, spells you cast cost less to cast.

Now I Know My ABC's

Enchantment

At the beginning of your upkeep, if you control permanents with names that include all twenty-six letters of the English alphabet, you win the game.

Nyxborn Seaguard

Enchantment Creature — Merfolk Soldier (2/5)

Opposition

Enchantment

Tap an untapped creature you control: Tap target artifact, creature, or land.

Pendrell Mists

Enchantment

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay ."

Precognition Field

Enchantment

You may look at the top card of your library any time.
You may cast instant and sorcery spells from the top of your library.
: Exile the top card of your library.

Prism Array

Enchantment

Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it.
Remove a crystal counter from Prism Array: Tap target creature.
: Scry 3. (Look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Propaganda

Enchantment

Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

Reality Twist

Enchantment

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
If tapped for mana, Plains produce , Swamps produce , Mountains produce , and Forests produce instead of any other type.

Recantation

Enchantment

At the beginning of your upkeep, you may put a verse counter on Recantation.
, Sacrifice Recantation: Return up to X target permanents to their owners' hands, where X is the number of verse counters on Recantation.

Rhystic Deluge

Enchantment

: Tap target creature unless its controller pays .

Righteous Authority

Enchantment — Aura

Enchant creature
Enchanted creature gets +1/+1 for each card in its controller's hand.
At the beginning of the draw step of enchanted creature's controller, that player draws an additional card.

Second Chance

Enchantment

At the beginning of your upkeep, if you have 5 or less life, sacrifice Second Chance and take an extra turn after this one.

Shifting Sky

Enchantment

As Shifting Sky enters the battlefield, choose a color.
All nonland permanents are the chosen color.

Snake Umbra

Enchantment — Aura

Enchant creature
Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Soul Ransom

Enchantment — Aura

Enchant creature
You control enchanted creature.
Discard two cards: Soul Ransom's controller sacrifices it, then draws two cards. Only your opponents may activate this ability.

Squeeze

Enchantment

Sorcery spells cost more to cast.