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Rules guide · Snow Creature

Hailstorm ValkyrieHow it works & interactions with other cards

By the ManaCount desk· 3 min read· Kaldheim· February 5, 2021
Carte Magic Hailstorm Valkyrie

Hailstorm Valkyrie is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

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Official card text

Flying, trample {S}{S}: This creature gets +2/+2 until end of turn. ({S} can be paid with one mana from a snow source.)

Complete guide

Hailstorm Valkyrie is a formidable Snow Creature that dominates the skies with a combination of evasion and raw power. By utilizing mana from snow sources, you can transform this Angel Wizard into an unstoppable threat that crushes through any defense. Understanding how to manage your snow mana is the key to unlocking its full potential on the battlefield.

Snow Mana Mastery

The core of Hailstorm Valkyrie lies in its activated ability which costs two snow mana symbols. A snow mana symbol is a generic cost that can only be paid using mana generated by a permanent with the Snow supertype, such as a Snow-Covered Swamp or a Coldsteel Heart. It is important to remember that snow is not a color; if you have an effect that allows you to spend mana as though it were any color, you still must ensure the mana originated from a snow source to pay this specific cost.

Step-by-Step Activation

To boost Hailstorm Valkyrie, you first announce the activation of the ability. You then must tap two sources that have the Snow supertype to produce the necessary mana. Once the cost is paid and the ability is placed on the stack, players have a chance to respond. If it resolves, the Valkyrie gains +2/+2 until the end of the current turn. Because there is no limit to how many times you can activate this, you can repeatedly pump the creature as long as you have enough snow mana available.

Tactical Timing and Trample

Since Hailstorm Valkyrie possesses both Flying and Trample, it is difficult to block effectively. You should typically wait until after your opponent declares blockers to activate the ability. This forces them to decide how to block without knowing exactly how large the Valkyrie will become. If they block with a small creature, the excess damage from the +2/+2 buffs will 'trample' over directly to their life total.

Common Misconceptions

A common mistake involves cost reduction effects. If an effect reduces the cost of activated abilities by a generic amount, that reduction does not apply to the snow mana symbol. You must always pay the full snow cost using mana from snow sources. Additionally, keep in mind that Hailstorm Valkyrie's ability is an activated ability, not a triggered one, meaning it requires manual activation and mana payment each time you want the bonus.

Interaction examples

Boosting for Lethal

If you have Hailstorm Valkyrie on the battlefield and four Snow-Covered Swamps untapped, you can activate its ability twice. Each activation adds +2/+2, making it a 7/7 creature with Flying and Trample until end of turn, potentially ending the game in a single swing.

Snow Sources and Type Synergy

When you play Solemn Simulacrum, you can search your library for a basic land. If you choose a Snow-Covered Plains or Swamp, that land enters the battlefield and provides the specific snow mana required to activate Hailstorm Valkyrie's ability on subsequent turns.

Type Selection Limits

If you play Roaming Throne and choose 'Angel', its ability will not cause Hailstorm Valkyrie to get +2/+2 twice when you pay mana. This is because the Valkyrie's +2/+2 ability is an activated ability (indicated by a colon), whereas Roaming Throne only interacts with triggered abilities (starting with 'when', 'whenever', or 'at').

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Hailstorm Valkyrie

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    Snow is a supertype, not a card type. It has no rules meaning or function by itself, but spells and abilities may refer to it.

    No other card is named in this ruling.

  2. #2· Wizards of the Coast

    The {S} symbol is a generic mana symbol. It represents a cost that can be paid by one mana that was produced by a snow source. That mana can be any color or colorless.

    No other card is named in this ruling.

  3. #3· Wizards of the Coast

    Snow isn't a type of mana. If an effect says you may spend mana as though it were any type, you can't pay for {S} using mana that wasn't produced by a snow source.

    No other card is named in this ruling.

  4. #4· Wizards of the Coast

    Some cards have additional effects for each {S} spent to cast them. You can cast these spells even if you don't spend any snow mana to cast them; their additional effects simply won't do anything.

    No other card is named in this ruling.

  5. #5· Wizards of the Coast

    The Kaldheim set doesn't have any cards with mana costs that include {S}, but some previous sets do. If an effect says such a spell costs {1} less to cast, that reduction doesn't apply to any {S} costs. This is also true for activated abilities that include {S} in their activation costs and effects that reduce those costs.

    No other card is named in this ruling.

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Legal formats

historictimelessgladiatorpioneermodernlegacyvintagecommanderoathbreakerbrawlcompetitivebrawlduel
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