Sealock Monster 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 Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.
NM-Mint - $0.10
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
NM-Mint Non English - $0.10
Lightly Played Non English - $0.10
Moderately Played Non English - $0.10
Heavily Played Non English - $0.10
Damaged Non English - $0.10
Foil Prices
NM-Mint Foil - $0.40
Lightly Played Foil - $0.40
Moderately Played Foil - $0.40
Heavily Played Foil - $0.40
Damaged Foil - $0.30
NM-Mint Foil Non English - $0.40
Lightly Played Foil Non English - $0.40
Moderately Played Foil Non English - $0.40
Heavily Played Foil Non English - $0.40
Damaged Foil Non English - $0.30