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Thassa's Oracle

Card details, tags, similarity scores, and printings.

Thassa's Oracle

Creature — Merfolk Wizard

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

$21.93

Commander: LegalModern: Legal

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Tags and classifications

Card attributes are distinct from inferred themes. AI themes and predicted tags are suggestions, not rules text; check the card before relying on a surprising classification.

Ability tags

Triggered

Mana costs

× 2

Creature kinds

Merfolk

Classes and roles

Wizard

Color identity

U

Mana value

Mana value 2

Theme tags

Card Draw

Timing tags

Timing Sorcery

Type tags

Creature

Predicted tags

Card Draw

Similar cards

Showing 25–48 of 34,604 candidates

These rankings describe text and metadata resemblance, not synergy, win rates, or claims that a card counters yours.

Flame Discharge

Score 0.469unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.740
Tags and themes
0.000
Color identity
0.000
Mana cost
0.250

No shared tags contributed to this comparison.

Subterranean Hangar

Score 0.469unitless formula ranking

Land · Mana cost: — · Color identity: B

Shared traits: No shared tags

Score details
Text (embedding)
0.755
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Snow-Covered Swamp

Score 0.470unitless formula ranking

Basic Snow Land — Swamp · Mana cost: — · Color identity: B

Shared traits: No shared tags

Score details
Text (embedding)
0.755
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Canopy Vista

Score 0.470unitless formula ranking

Land — Forest Plains · Mana cost: — · Color identity: WG

Shared traits: No shared tags

Score details
Text (embedding)
0.756
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Strip Mine

Score 0.470unitless formula ranking

Land · Mana cost: — · Color identity: Colorless

Shared traits: No shared tags

Score details
Text (embedding)
0.756
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Arctic Flats

Score 0.471unitless formula ranking

Snow Land · Mana cost: — · Color identity: WG

Shared traits: No shared tags

Score details
Text (embedding)
0.756
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Geothermal Crevice

Score 0.471unitless formula ranking

Land · Mana cost: — · Color identity: BRG

Shared traits: No shared tags

Score details
Text (embedding)
0.757
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Pinecrest Ridge

Score 0.471unitless formula ranking

Land · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.757
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Explosive Welcome

Score 0.471unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.773
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Gongaga, Reactor Town

Score 0.471unitless formula ranking

Land — Town · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.758
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Geothermal Bog

Score 0.472unitless formula ranking

Land — Swamp Mountain · Mana cost: — · Color identity: BR

Shared traits: No shared tags

Score details
Text (embedding)
0.759
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Snowfield Sinkhole

Score 0.472unitless formula ranking

Snow Land — Plains Swamp · Mana cost: — · Color identity: WB

Shared traits: No shared tags

Score details
Text (embedding)
0.759
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Alpine Meadow

Score 0.473unitless formula ranking

Snow Land — Mountain Plains · Mana cost: — · Color identity: WR

Shared traits: No shared tags

Score details
Text (embedding)
0.760
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Galvanic Blast

Score 0.473unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.747
Tags and themes
0.000
Color identity
0.000
Mana cost
0.250

No shared tags contributed to this comparison.

Tunnel

Score 0.473unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.747
Tags and themes
0.000
Color identity
0.000
Mana cost
0.250

No shared tags contributed to this comparison.

Volcanic Upheaval

Score 0.474unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.762
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Burst of Energy

Score 0.474unitless formula ranking

Instant · Mana cost: · Color identity: W

Shared traits: No shared tags

Score details
Text (embedding)
0.749
Tags and themes
0.000
Color identity
0.000
Mana cost
0.250

No shared tags contributed to this comparison.

Mossfire Valley

Score 0.474unitless formula ranking

Land · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.763
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Tranquil Expanse

Score 0.474unitless formula ranking

Land · Mana cost: — · Color identity: WG

Shared traits: No shared tags

Score details
Text (embedding)
0.763
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Highland Forest

Score 0.475unitless formula ranking

Snow Land — Mountain Forest · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.763
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Training Compound

Score 0.475unitless formula ranking

Land · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.764
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Flame Javelin

Score 0.476unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.776
Tags and themes
0.000
Color identity
0.000
Mana cost
0.100

No shared tags contributed to this comparison.

Brightclimb Pathway // Grimclimb Pathway

Score 0.476unitless formula ranking

Land // Land · Mana cost: — · Color identity: WB

Shared traits: No shared tags

Score details
Text (embedding)
0.765
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

Swamp

Score 0.476unitless formula ranking

Basic Land — Swamp · Mana cost: — · Color identity: B

Shared traits: No shared tags

Score details
Text (embedding)
0.766
Tags and themes
0.000
Color identity
0.000
Mana cost
0.167

No shared tags contributed to this comparison.

How ranking works

Balanced: 0.60*text + 0.20*tags + 0.10*color + 0.10*cost. Outputs are unitless rankings, not percentages or probabilities. Most similar shows the highest scores; Typical overlap is nearest the catalog median (0.602); Least similar shows the lowest scores.

Text uses cosine resemblance (−1 to 1) between 384-number embeddings when available, or lexical fallback otherwise. Tags use Jaccard overlap of approved tags and AI themes, excluding predicted tags and separately scored color/cost tags. Color compares W/U/B/R/G identity. Mana cost combines mana-value proximity, 1 / (1 + the difference), with mana-symbol overlap. Tags, color, and cost range from 0 to 1.

Model: bge-small-en-v1.5. 34,605 of 34,605 catalog cards currently have embeddings.

Potential relationships

1,031 of 34,605 canonical cards have AI-derived resource labels. Label model: gpt-5.6-luna.

This card is missing AI-derived resource labels, so potential synergies and answers are unavailable. No text or predicted-tag inference is used.

About relationship labels

These labels are AI-derived resource matches, not reviewed or rules-validated interactions. Check deck legality, color identity, costs, timing, restrictions, and the cards themselves.

Printings
SetLanguageCollectorReleasedRarityPrice
Mystery Booster 2en1752024-08-02rare$20.56
Secret Lair Dropen12802023-04-23rare$119.26
Magic Online Promosen799092020-02-07rare—
Theros Beyond Deathko732020-01-24rare—
Theros Beyond Deathde732020-01-24rare—
Theros Beyond Deathen3082020-01-24rare$27.12
Theros Beyond Deathpt732020-01-24rare—
Theros Beyond Deathja732020-01-24rare—
Theros Beyond Deathzht732020-01-24rare—
Theros Beyond Deathen732020-01-24rare$21.93
Theros Beyond Deathfr732020-01-24rare—
Theros Beyond Deathit732020-01-24rare—
Theros Beyond Deathru732020-01-24rare—
Theros Beyond Death Promosen73s2020-01-24rare—
Theros Beyond Deathes732020-01-24rare—
Theros Beyond Deathzhs732020-01-24rare—
Theros Beyond Death Promosen73p2020-01-24rare$25.56