Astroquarium 
Artifact
Oracle text (EN)
Artifact
When this artifact enters, you may put an art sticker on it.
, 
: Until end of turn, target creature becomes a blue Shark with base power and toughness 4/4. If the cracks in this artifact's art are completely covered, that creature becomes a blue Octopus with base power and toughness 8/8 instead. Activate only as a sorcery.
Printing details
- Set
- UNF · 320
- Rarity
- Uncommon
- Language
- EN
- Artist
- Tyler Walpole
- Released
- 2022-10-07
- Prices
- €0.64 · $0.41
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 28, 2026 | €0.64 | €0.77 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low €0.30 trend €0.00 30-day avg – | low €0.30 trend €0.64 30-day avg €0.71 |
| CardTrader (EN) | NM from – | NM from €0.77 with Zero from €0.77 |
| CardTrader (any language) | NM from – | NM from €0.77 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Not legal
- modern Not legal
- legacy Not legal
- vintage Not legal
- commander Not legal
- pauper Not legal
- alchemy Not legal
- brawl Not legal
- competitivebrawl Not legal
- duel Not legal
- future Not legal
- gladiator Not legal
- historic Not legal
- oathbreaker Not legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Not legal
- tlr Not legal
Rulings
-
Effects that modify the creature’s power or toughness (such as the effect of Giant Growth) will apply no matter when they started to take effect. The same is true for counters that change its power or toughness (such as +1/+1 counters).
-
You can use any kind of sticker to cover the cracks in Astroquarium’s art, not just art stickers. Name, ability, and power and toughness stickers will function no matter where they are physically positioned.
-
After the activated ability resolves, the creature will not retain any of its previous colors or creature types—it will be only a blue Shark or a blue Octopus. Its other card types (such as artifact) and supertypes (such as legendary), if any, will remain unchanged.
-
Once the activated ability resolves, it doesn’t matter what happens to Astroquarium or its . . . um . . . cracks. If the creature becomes a 4/4 Shark and then the cracks become completely covered later in the turn, the creature won’t spontaneously become an 8/8 Octopus.