The Sealock Monster is an Uncommon blue Octopus creature from the 2015 Duel Decks: Elspeth vs. Kiora set, designed to control the board by turning lands into Islands.
Sealock Monster
2015 • Magic: The Gathering • Duel Decks: Elspeth vs. Kiora
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Description
The Sealock Monster, card number 42 in the Duel Decks: Elspeth vs. Kiora set, represents a distinct strategic option within the Magic: The Gathering trading card game. Released in 2015, this Uncommon blue creature brings a heavy mana investment of five generic mana and two blue mana to the battlefield. As a five-power, five-toughness Octopus, it offers substantial presence for its cost, though its deployment comes with specific board conditions. The card’s design centers on a unique attack restriction and a powerful late-game transformation. It cannot attack unless the defending player controls an Island, a mechanic that encourages players to build decks with abundant land bases or utilize strategies that force opponents to play them. This restriction adds a layer of tactical depth, rewarding careful board state assessment before committing to aggression. Once the game progresses, the Sealock Monster can be enhanced using its activated ability. By paying five generic mana and two blue mana, a player can initiate its Monstrosity 3 ability. This process places three +1/+1 counters on the creature, significantly increasing its power and toughness. Upon becoming monstrous, the card triggers a secondary effect that forces a target land to become an Island in addition to its other types. This ability allows players to generate additional blue mana sources or disrupt opponent strategies by altering land types. Art by Adam Paquette, the card reflects the aquatic themes prevalent in the Kiora portion of the Duel Decks. Collectors of the Magic: The Gathering trading card game often seek this card for its innovative interaction between land types and creature combat. The Sealock Monster stands out as a memorable piece of the DDO set, appealing to those interested in blue-based control strategies and unique creature mechanics. Its combination of raw power and conditional utility makes it a fascinating addition to any collection focused on the 2015 era of Magic releases.
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Card Details
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Catalog Profile
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Featured Subject
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Featured
Sealock Monster
Game
Magic: The Gathering
TCG Attributes
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Uncommon
Adam Paquette
Card Stock
English
{3}{U}{U}
Creature — Octopus
5 / 5
U
Card Text
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This 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.












