At the beginning of its first turn, Conchio will plant 2 sea mines. The locations are random and will persist until Battle 5. While on the map, the mines act as floor spikes, dealing 150, 300 or 600 damage, depending on difficulty. However, if all of your units have Levitation active, the mines will float up and explode when you end your turn, dealing heavy damage to units within "Cross, All" range. The floating mines cannot be removed using the Disarm Bomb skill.
When alone, Conchio will attempt to flee.
Before Battle 5, all remaining sea mines are removed.