Sealock Monster
Current paper retail
Card Kingdom$0.35
Cardmarket€0.05
ManaPool$0.15
TCGplayer$0.08
MTGO (Cardhoarder)
retail$0.03 tix
90-day paper retail (USD)
3 providers
This printing
SetTHS
Collector #62
Released2013-09-27
Rarityuncommon
ArtistAdam Paquette
LanguageEN
Layoutnormal
ScryfallOpen ↗

Sealock Monster

UncommonColour IDMV 5
Creature — Octopus
This creature can't attack unless defending player controls an Island.
: 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.
5 / 5
Keywords
Monstrosity
Card capabilities
Creature
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Other printings
2 other English printingsEarliest 2015-02-27Newest 2019-11-07Cheapest priced $0.15 in DDO
Rulings (4)
wotc15 Sept 2013
An ability that triggers when a creature becomes monstrous won't trigger if that creature isn't on the battlefield when its monstrosity ability resolves.
wotc15 Sept 2013
Monstrous isn't an ability that a creature has. It's just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.
wotc15 Sept 2013
Once a creature becomes monstrous, it can't become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.
wotc15 Sept 2013
The effect making the land an Island doesn't have a duration and will last indefinitely. The land retains any land types and abilities it already had. An Island has the ability “{T}: Add {U}.”