Description

MTG Monstruo de la prisión acuática (Sealock Monster) Theros
Sealock Monster 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 Sealock Monster becomes monstrous, target land becomes an Island in addition to its other types.