The Water Crystal
Tracked across real Commander games played through TurnZero HQ.
What it does
Blue spells you cast cost 1 less to cast.
If an opponent would mill one or more cards, they mill that many cards plus four instead.
4, T: Each opponent mills cards equal to the number of cards in your hand.
Combos with The Water Crystal
The lines this card is part of, what it needs alongside it, and what the cards do together. An infinite result is the one that moves a deck's bracket.
- Aethersnipe Gwenna, Eyes of Gaea Infinite
- Infinite creature LTB
- Infinite creature ETB
- Infinite storm count
- Infinite +1/+1 counters on a creature
- Orvar, the All-Form View from Above Infinite
- Infinite artifact ETB
- Infinite storm count
- Infinite magecraft triggers
- Infinite landfall triggers
- Infinite tapped Island tokens
- Urza, Lord High Artificer Corridor Monitor Banishing Knack Infinite
- Infinite artifact ETB
- Infinite artifact LTB
- Infinite creature ETB
- Infinite creature LTB
- Infinite storm count
- Urza, Lord High Artificer Corridor Monitor Retraction Helix Infinite
- Infinite artifact ETB
- Infinite artifact LTB
- Infinite creature ETB
- Infinite creature LTB
- Infinite storm count
- Wretched Throng Ashnod's Altar Pitiless Plunderer Epitaph Golem Infinite
- Infinite creature LTB
- Infinite creature ETB
- Infinite creature sacrifice triggers
- Infinite death triggers
- Infinite storm count
Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.
Rulings
5 official rulings, in the order Wizards published them.
- 2025-06-06
In the rare case where you control two of The Water Crystal, each opponent mills eight more cards than originally instructed. If you control three, your opponents mill twelve more, and so on.
- 2025-06-06
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Water Crystal's first ability). The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.
- 2025-06-06
The cost reduction applies only to generic mana in the total cost of blue spells you cast.
- 2025-06-06
Some older cards have received errata to instruct a player to mill cards rather than to put the top cards of their library into their graveyard. Use the Oracle™ card reference at Gatherer.Wizards.com to determine whether a specific card has received such errata. As a rule of thumb, if an effect instructs a player to look at or reveal a card before it's put into its owner's graveyard, it's unlikely to have received errata.
- 2025-06-06
If an opponent is instructed to put a card into their graveyard without using the word "mill," The Water Crystal's second ability doesn't apply.
Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.
In the 99
Every deck whose current list includes The Water Crystal, whatever its commander.
Most played under
| Commander | Decks | Games | Win rate |
|---|---|---|---|
| Zellix, Sanity Flayer | 2 | 0 | — |
| The Council of Four | 1 | 3 | — |
| Kami of the Crescent Moon | 1 | 0 | — |
Colors it shows up in
- Mono-Blue 3 decks
- Azorius 1 deck
The Water Crystal price history
The Final Fantasy #85 printing, as Scryfall reports the TCGplayer market. Updated nightly. Click any version below to chart its price.
Every recorded price change
| Date | Non-foil | Foil |
|---|---|---|
| Nov 11, 2026 | $3.73 | $4.63 |
| Nov 10, 2026 | $3.86 | $4.57 |
| Nov 9, 2026 | $3.91 | $4.75 |
| Nov 8, 2026 | $3.89 | $4.75 |
| Nov 7, 2026 | $3.74 | $4.75 |
| Nov 6, 2026 | $3.84 | $4.80 |
| Nov 5, 2026 | $4.09 | $4.83 |
| Nov 4, 2026 | $4.07 | $4.72 |
| Nov 3, 2026 | $4.29 | $4.63 |
| Nov 2, 2026 | $4.24 | $4.63 |
| Oct 31, 2026 | $3.81 | $4.85 |
| Oct 30, 2026 | $3.42 | $4.89 |
| Oct 29, 2026 | $3.47 | $4.89 |
| Oct 27, 2026 | $3.85 | $5.08 |
| Oct 26, 2026 | $3.93 | $5.24 |
| Oct 25, 2026 | $3.83 | $5.09 |
| Oct 24, 2026 | $3.98 | $5.09 |
| Oct 23, 2026 | $3.59 | $5.09 |
| Oct 22, 2026 | $3.24 | $5.09 |
| Oct 21, 2026 | $3.53 | $5.08 |
| Oct 20, 2026 | $3.59 | $5.08 |
| Oct 19, 2026 | $3.36 | $5.08 |
| Oct 18, 2026 | $3.23 | $5.16 |
| Oct 17, 2026 | $3.43 | $5.09 |
| Oct 16, 2026 | $3.49 | $5.09 |
| Oct 15, 2026 | $3.38 | $5.18 |
| Oct 14, 2026 | $3.48 | $5.18 |
| Oct 13, 2026 | $4.06 | $4.91 |
| Oct 12, 2026 | $3.99 | $4.90 |
| Oct 11, 2026 | $4.08 | $4.91 |
| Oct 10, 2026 | $4.57 | $4.91 |
| Oct 9, 2026 | $4.67 | $5.00 |
| Oct 8, 2026 | $4.45 | $4.89 |
| Oct 7, 2026 | $4.24 | $4.89 |
| Oct 6, 2026 | $3.84 | $4.72 |
| Oct 5, 2026 | $3.46 | $4.77 |
| Oct 4, 2026 | $3.74 | $5.22 |
| Oct 3, 2026 | $3.84 | $5.22 |
| Oct 2, 2026 | $3.57 | $5.18 |
| Oct 1, 2026 | $3.56 | $5.36 |
| Sep 30, 2026 | $3.63 | $5.54 |
| Sep 29, 2026 | $3.67 | $5.71 |
| Sep 28, 2026 | $3.73 | $5.89 |
A row is recorded only on nights the price moved, so each price held until the row above it.
Every version of The Water Crystal
3 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly. A printing with no figure shows a dash rather than a zero, because Scryfall publishes none for some of them. Click a card's art to chart that version's price above.
Inverted
- Normal
- $8.97
- Foil
- $11.66
- Normal
- $3.73
- Foil
- $4.63
Promo
Final Fantasy Promos
- Foil
- $13.61
Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for The Water Crystal. It runs a name search across every version, which covers the printings TCGplayer publishes no direct link to.
Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only. No individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.
