Split second
Return target permanent to its owner's hand.

Put a +1/+1 counter on up to one target creature you control. Tap up to one target creature you don't control, and that creature doesn't untap during its controller's next untap step.
Flashback

Enchant creature
When this Aura enters, tap enchanted creature.
As long as you control another snow permanent, enchanted creature doesn't untap during its controller's untap step.

Whenever a player taps a snow land for mana, that player adds one mana of any type that land produced. That land doesn't untap during its controller's next untap step.

Winter's Intervention deals 2 damage to target creature. You gain 2 life.

Destroy target land.

Draw three cards. Then discard two cards unless you discard a creature card.
Harmonize

This land enters tapped.
: Add .
, , Sacrifice this land: Tap two target lands.

Choose one or both —
• Tap target creature.
• Winterflame deals 2 damage to target creature.

When Winter enters, you may sacrifice a creature or planeswalker. When you do, each opponent sacrifices a creature of their choice.
Winter gets +1/+0 for each creature and planeswalker card in your graveyard.

Convoke
Whenever you cast a noncreature spell, creatures you control get +1/+0 until end of turn.

Whenever Winter Soldier attacks, return target creature card with mana value less than or equal to Winter Soldier's power from your graveyard to the battlefield. If a Hero enters this way, it enters with an additional +1/+1 counter on it.

Vigilance, menace
Winter Soldier gets +2/+0 for each Equipment attached to him.
: Return this card from your graveyard to the battlefield with a finality counter on him. Then you may attach an Equipment you control to him.

Winter Soldier enters tapped.

Flip a coin. If you win the flip, Winter Sky deals 1 damage to each creature and each player. If you lose the flip, each player draws a card.

As long as this artifact is untapped, players can't untap more than one land during their untap steps.

Players can't untap more than one nonbasic land during their untap steps.

Ward
At the beginning of your upkeep, each player draws two cards.
Delirium — As long as there are four or more card types among cards in your graveyard, each opponent's maximum hand size is equal to seven minus the number of those card types.

Gust of Wind — When this creature enters, return up to one other target creature to its owner's hand.

Deathtouch
Whenever Winter attacks, mill three cards.
Delirium — At the beginning of your end step, you may exile any number of cards from your graveyard with four or more card types among them. If you do, put a permanent card from among them onto the battlefield with a finality counter on it.

Ward — Pay 2 life.
Artifacts you control have "Ward — Pay 2 life."
Exhaust — , , Exile X artifact cards from your graveyard: Each other nonartifact creature gets -X/-X until end of turn. (Activate each exhaust ability only once.)

Whenever a non-Human creature you control attacks, look at the top six cards of your library. You may put a Human creature card from among them onto the battlefield tapped and attacking. It gains indestructible until end of turn. Put the rest of the cards on the bottom of your library in a random order.

Convoke
For each player, you choose a creature that player controls. Then each player sacrifices all other creatures they control that don't share a creature type with the chosen creature they control.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, put a +1/+1 counter on this creature.

Destroy target nonland permanent if another permanent with the same name is on the battlefield.
Draw a card.

When Wingsteed Trainer enters or attacks, conjure a Stormfront Pegasus card into your hand.

Flying
Heroic — Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature.

Enchant creature
Enchanted creature gets +1/+1 and has flying.
: Return this Aura to its owner's hand.