Giant's Grasp

Enchantment — Aura

Enchant Giant you control
When Giant's Grasp enters the battlefield, gain control of target nonland permanent for as long as Giant's Grasp remains on the battlefield.

Gravitational Shift

Enchantment

Creatures with flying get +2/+0.
Creatures without flying get -2/-0.

Heightened Awareness

Enchantment

As Heightened Awareness enters the battlefield, discard your hand.
At the beginning of your draw step, draw an additional card.

Honden of Seeing Winds

Legendary Enchantment — Shrine

At the beginning of your upkeep, draw a card for each Shrine you control.

Idle Thoughts

Enchantment

: Draw a card if you have no cards in hand.

In Bolas's Clutches

Legendary Enchantment — Aura

Enchant permanent
You control enchanted permanent.
Enchanted permanent is legendary.

Levitation

Enchantment

Creatures you control have flying.

Leyline of Singularity

Enchantment

If Leyline of Singularity is in your opening hand, you may begin the game with it on the battlefield.
All nonland permanents are legendary.

Mana Breach

Enchantment

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Mind Control

Enchantment — Aura

Enchant creature
You control enchanted creature.

Mind Over Matter

Enchantment

Discard a card: You may tap or untap target artifact, creature, or land.

Mystic Decree

World Enchantment

All creatures lose flying and islandwalk.

Nyxborn Seaguard

Enchantment Creature — Merfolk Soldier (2/5)

Octo Opus

Enchantment

When Octo Opus enters the battlefield, create a 4/4 blue Octopus Performer creature token named Contortionist with "At the beginning of your upkeep, you may fold this token in half." (It becomes 2/2, then 1/1, ½/½, and so on.)
Sacrifice Octo Opus: Draw a card and an additional card for each of Contortionist's folds.

Ocular Halo

Enchantment — Aura

Enchant creature
Enchanted creature has ": Draw a card."
: Enchanted creature gains vigilance until end of turn.

Opposition

Enchantment

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

Oracle's Insight

Enchantment — Aura

Enchant creature
Enchanted creature has ": Scry 1, then draw a card." (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.)

Parallel Thoughts

Enchantment

When Parallel Thoughts enters the battlefield, search your library for seven cards, exile them in a face-down pile, and shuffle that pile. Then shuffle your library.
If you would draw a card, you may instead put the top card of the pile you exiled into your hand.

Patient Rebuilding

Enchantment

At the beginning of your upkeep, target opponent mills three cards, then you draw a card for each land card put into their graveyard this way.

Persuasion

Enchantment — Aura

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
You control enchanted creature.