Price updates are limited. Some displayed estimates may be older. See each card’s price history for context.
Sealock Monster's Near Mint price is up 20.0% ($0.02) over the past 30 days.
Fresh· Updated Nov 3, 2026
Card Details
TypeCreature — Octopus
Mana Cost3UU
P/T5/5
ArtistAdam Paquette
Card TextThis creature can't attack unless defending player controls an Island.
{5}{U}{U}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When this creature becomes monstrous, target land becomes an Island in addition to its other types.
Format Legality
ModernPioneerCommanderLegacyVintage
inkwell Fair Value™?· NM
$0.12
moderate
——
Condition?
3 printings — select edition
Confidencemedium
Prices as ofNov 3
Normal—
Cheapest printing$0.08
Why This Price
inkwell Estimate
Fair Value$0.12
Movement
7D Change+9.1% (+$0.01)
30D Change+20.0% (+$0.02)
Freshness
Prices as ofNov 3
Update cadenceDaily
Inkwell Fair Value$0.12
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More from Theros
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- How much is Sealock Monster worth?
- The current Near Mint price for Sealock Monster from Theros (Magic: The Gathering) is $0.12. It has increased 9.1% over the past 7 days.
- What set is Sealock Monster from?
- Sealock Monster is from the Theros set, released September 2013. It is a uncommon in Magic: The Gathering.
- What rarity is Sealock Monster?
- Sealock Monster is a uncommon card from Theros in Magic: The Gathering.
- How has the price of Sealock Monster changed over the past 30 days?
- Over the past 30 days, the Near Mint price of Sealock Monster has risen 20.0% ($0.02) to $0.12.
- How many printings of Sealock Monster exist?
- Sealock Monster has 3 printings across different Magic: The Gathering sets. The cheapest printing is $0.08 from Duel Decks: Elspeth vs. Kiora.