Whenever a player chooses one or more targets, each player reveals the top card of their library. The player who reveals the card with the greatest mana value may change the target or targets. If two or more cards are tied for greatest, the target or targets remain unchanged. Changing targets this way doesn't trigger abilities of permanents named Psychic Battle.

Whenever you draw a card, each opponent mills two cards.

Enchant creature
Enchanted creature gets +2/+2 and is goaded.
Whenever enchanted creature attacks, you scry 2.

Each player reveals the top card of their library to all other players by continuously holding it against their forehead. This doesn't allow a player to look at their own card. (That card is still the top card of your library. If you would draw a card, draw that one instead and replace it with the next card of your library.)

Enchant permanent
When this Aura enters, tap enchanted permanent.
Enchanted permanent doesn't untap during its controller's untap step.
Enchanted permanent has "Discard two artifact cards: Untap this permanent."

Enchant opponent
Skip your draw step.
Whenever enchanted opponent draws a card, you may draw a card.

Whenever an opponent shuffles their library, you may look at the top two cards of that library. You may exile one of those cards. Then put the rest on top of that library in any order.

Enchant land
Whenever enchanted land becomes tapped, this Aura deals 2 damage to that land's controller.

Cumulative upkeep — Draw a card.
At the beginning of your end step, sacrifice a land and discard your hand.

Enchant creature
All creatures attack enchanted creature's controller each combat if able.
When enchanted creature dies, draw a card.

At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with equal or lesser mana value.

Enchant creature
When enchanted creature dies, return that card to its owner's hand. If that card is returned to its owner's hand this way, you may pay . If you do, return this card to its owner's hand.

Teamwork 2
You may cast this spell as though it had flash if it's cast using teamwork.
Enchant creature
Enchanted creature gets -5/-0 and loses all abilities.

Whenever a card is put into your graveyard from anywhere, you may put a quest counter on this enchantment.
Remove five quest counters from this enchantment and sacrifice it: Target player shuffles their graveyard into their library.

At the beginning of your upkeep, you may look at the top card of your library. If it's a creature card, you may reveal it and put a quest counter on this enchantment.
At the beginning of each end step, if there are three or more quest counters on this enchantment, you may put a Kraken, Leviathan, Octopus, or Serpent creature card from your hand onto the battlefield.

Whenever you cast a noncreature spell, you may pay . If you do, tap target creature an opponent controls and it doesn't untap during its controller's next untap step.

Flash
Enchant creature
When this Aura enters, if enchanted creature is red, tap it.
As long as enchanted creature is red, it loses all abilities.
Enchanted creature doesn't untap during its controller's untap step.

Enchant permanent
Vanishing 3
When this Aura leaves the battlefield, enchanted permanent's controller sacrifices it.

Cumulative upkeep
If tapped for mana, Plains produce , Swamps produce , Mountains produce , and Forests produce instead of any other type.

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

Whenever a creature you control deals combat damage to a player, you may draw a card.
Cycling

Enchant creature
Enchanted creature has base power and toughness 0/2.

As this enchantment enters, choose a creature type.
Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Enchant artifact an opponent controls
Whenever enchanted artifact becomes tapped, choose one —
• This Aura deals 1 damage to target player or planeswalker.
• Target player gains 1 life.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
Other permanents you control have hexproof.

Landfall — Whenever a land you control enters, choose one —
• You may tap or untap target creature.
• Scry 1.

Flash
Enchant creature
Enchanted creature is a Turtle with base power and toughness 0/1. It can't attack and loses all abilities. (It also loses all other creature types.)

Whenever one or more creatures you control become tapped, draw a card, then discard a card and put a plan counter on this enchantment.
When the fourth plan counter is put on this enchantment, sacrifice it. When you do, return up to two target instant and/or sorcery cards from your graveyard to your hand.

: Tap target creature unless its controller pays .

Whenever an opponent casts a spell, you may draw a card unless that player pays .