Flying
When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature.

When this enchantment enters, exile the top five cards of your library face down.
At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with this enchantment into your hand.
At the beginning of your end step, discard a card.
When you lose control of this enchantment, put all cards exiled with this enchantment into their owner's graveyard.

Enchant creature
You control enchanted creature.
Enchanted creature gets -3/-0 and loses all abilities.

Whenever one or more cards are put into a library from anywhere, put a +1/+1 counter on this creature.
: Put target card from a graveyard on the bottom of its owner's library.

Enchant creature
Enchanted creature gets -6/-0.
When enchanted creature blocks, destroy it.

Freerunning
Draw three cards.

Tap up to three target lands.

Flash
Enchant creature
Enchanted creature loses all abilities and is a black Skeleton creature with base power and toughness 1/1.

Flying
When this creature enters, venture into the dungeon. (Enter the first room or advance to the next room.)
At the beginning of combat on your turn, if you've completed a dungeon, up to one target creature becomes a Bird with base power and toughness 1/1 and flying until end of turn.

Flying
When this creature enters, it connives.

Level up

Each player shuffles their hand and graveyard into their library, then draws seven cards.
Flashback

Vigilance
, : Copy target activated or triggered ability you control from a creature source. You may choose new targets for the copy. (Mana abilities can't be targeted.)

When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies.
Create a token that's a copy of target artifact.

Morph
When this creature is turned face up, return target creature to its owner's hand.

Target player creates a token that's a copy of target creature you control.
Paradigm

Double team
Actualize — Echogoyfs's power is equal to the number of spells you've cast this game that weren't from your starting deck and its toughness is equal to that number plus 1.

Choose target creature you control. Each other creature you control becomes a copy of it until end of turn, except those creatures aren't legendary.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Flash
This spell costs less to cast for each instant and sorcery card in your graveyard.
This creature enters tapped if it's not your turn.
When this creature enters, tap up to two target creatures.

When Edgar enters, draw a card for each artifact you control.
Two-Headed Coin — The first time you flip one or more coins each turn, those coins come up heads and you win those flips.

Flash
Enchant creature
Enchanted creature gets +1/+1.
Umbra armor

Search your library for an Arcane card, reveal that card, put it into your hand, then shuffle.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

Changeling
Creatures target player controls get -2/-0 and lose all creature types until end of turn.

, Sacrifice this creature: Draw three cards.

This spell can't be countered.
Return target nonland permanent to its owner's hand.
Draw a card.

At the beginning of your upkeep, unless you sacrifice an Island, sacrifice this creature and it deals 6 damage to you.
This creature can't be blocked by red creatures.

Devoid
Flying
When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add ."