Light from Within

Enchantment

Chroma — Each creature you control gets +1/+1 for each white mana symbol in its mana cost.

Light of Day

Enchantment

Black creatures can't attack or block.

Light of Sanction

Enchantment

Prevent all damage that would be dealt to creatures you control by sources you control.

Look at Me, I'm R&D

Enchantment

As Look at Me, I'm R&D comes into play, choose a number and a second number one higher or one lower than that number.
All instances of the first chosen number on permanents, spells, and cards in any zone are the second chosen number.

Lucent Liminid

Enchantment Creature — Elemental (3/3)

Flying

Luminous Bonds

Enchantment — Aura

Enchant creature
Enchanted creature can't attack or block.

Mammoth Umbra

Enchantment — Aura

Enchant creature
Enchanted creature gets +3/+3 and has vigilance.
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Mantle of the Ancients

Enchantment — Aura

Enchant creature you control
When Mantle of the Ancients enters the battlefield, return any number of target Aura and/or Equipment cards from your graveyard to the battlefield attached to enchanted creature.
Enchanted creature gets +1/+1 for each Aura and Equipment attached to it.

Marked by Honor

Enchantment — Aura

Enchant creature
Enchanted creature gets +2/+2 and has vigilance. (Attacking doesn't cause it to tap.)

Marshal's Anthem

Enchantment

Multikicker (You may pay an additional any number of times as you cast this spell.)
Creatures you control get +1/+1.
When Marshal's Anthem enters the battlefield, return up to X target creature cards from your graveyard to the battlefield, where X is the number of times Marshal's Anthem was kicked.

Martyr's Cause

Enchantment

Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Mayael's Aria

Enchantment

At the beginning of your upkeep, put a +1/+1 counter on each creature you control if you control a creature with power 5 or greater. Then you gain 10 life if you control a creature with power 10 or greater. Then you win the game if you control a creature with power 20 or greater.

Minimus Containment

Enchantment — Aura

Enchant nonland permanent
Enchanted permanent is a Treasure artifact with ", Sacrifice this artifact: Add one mana of any color," and it loses all other abilities. (If it was a creature, it's no longer a creature.)

Moat

Enchantment

Creatures without flying can't attack.

Mobilization

Enchantment

Soldier creatures have vigilance.
: Create a 1/1 white Soldier creature token.

Nahiri's Binding

Enchantment — Aura

Enchant creature or planeswalker
Enchanted permanent can't attack or block, and its activated abilities can't be activated.

Nevermore

Enchantment

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

Nine Lives

Enchantment

Hexproof
If a source would deal damage to you, prevent that damage and put an incarnation counter on Nine Lives.
When there are nine or more incarnation counters on Nine Lives, exile it.
When Nine Lives leaves the battlefield, you lose the game.

Nyxborn Courser

Enchantment Creature — Centaur Scout (2/4)

Oath of Gideon

Legendary Enchantment

When Oath of Gideon enters the battlefield, create two 1/1 white Kor Ally creature tokens.
Each planeswalker you control enters the battlefield with an additional loyalty counter on it.