User blog comment:Lord Loss/Discussion of the Week: Swimming/@comment-5963861-20130121135954/@comment-184.38.5.102-20130121141805

Don't forget the Green Plesioth's cheap sweeping beam underwater but,yeah the Lagiacrus Sub can be fought ocassionally underwater.The highest chance you have of fighting it underwater(Atleast in my case)is hunting it in the Flooded Forest with another Lagiacrus Sub or with the Normal Lagiacrus.