When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Flying
: This creature gains shroud until end of turn. ( can be paid with one mana from a snow permanent.)

Whenever this creature becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays .
Whenever this creature enters or attacks, tap target permanent. It doesn't untap during its controller's next untap step.

Flying
When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

When this creature becomes the target of a spell or ability, sacrifice it.

Ward
When this creature enters, tap target creature an opponent controls and put a stun counter on it.

: This creature can't be blocked this turn. ( can be paid with one mana from a snow source.)

This spell costs less to cast if you control a Giant or a Wizard.
When this creature enters, search your library for an instant or sorcery card with the same name as a card in your graveyard, reveal it, put it into your hand, then shuffle.

Flying
: Creatures you control gain flying until end of turn.

Vigilance
, : Draw a card, then discard a card.

This creature can't be blocked as long as you've sacrificed an artifact this turn.
Whenever this creature attacks, draw a card, then discard a card.

As long as this creature is tapped, it's a Human Citizen with base power and toughness 1/1 and can't be blocked.
: Untap this creature.

Flash
When Futurist Spellthief enters, conjure a duplicate of target spell into your hand. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

Flying
This creature can't be blocked by blue creatures.
: Target creature becomes blue until end of turn.

Flash
Flying
Whenever this creature attacks, it becomes prepared.

Specialize
When Gale, Conduit of the Arcane enters, if you cast it, return target instant or sorcery card from your graveyard to your hand.

This card can changes to one of the different specialized versions, depending on which color was discarded:
Gale, Holy Conduit
Gale, Temporal Conduit
Gale, Abyssal Conduit
Gale, Storm Conduit
Gale, Primeval Conduit

Whenever you cast an instant or sorcery spell, draw a card, then discard a card.

This card is a specialized version of Gale, Conduit of the Arcane.

Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard. If a spell cast from your graveyard this way would be put into your graveyard, exile it instead.
Choose a Background (You can have a Background as a second commander.)

Tap an untapped Wizard you control: Return target nonland permanent you don't control to its owner's hand.

Flying
Disturb

Sliver creatures you control have flying.

Soulbond
As long as this creature is paired with another creature, each of those creatures has ": Untap this creature."

Whenever you cast a spell with mana value 5 or greater, tap target creature an opponent controls and put a stun counter on it.

Flash
You may cast sorcery spells as though they had flash.
Whenever the Ring tempts you, if you chose a creature other than Gandalf as your Ring-bearer, draw a card.

Vigilance
When Gandalf enters, exile up to three target lands you control, then return them to the battlefield tapped under their owner's control.
Landfall — Whenever a land you control enters, draw a card and put a +1/+1 counter on Gandalf.

Ward
: Gandalf's owner shuffles him into their library and draws three cards.

Whenever a Gate you control enters, this creature can't be blocked this turn.
Whenever this creature deals combat damage to a player, draw a card.

Affinity for artifacts
: This creature can't be blocked this turn.