Wikipedia
Berberoka
The people from Apayao, Abra and Ilocos Norte believe and fear a swamp creature called Berberoka. It lures victims by sucking water in the pond enough for a number fish to come into surface. When the potential victims get attracted to the school of fish, the Berberoka drowns them by hosing water and swallowing them afterwards.
They were compared to the Greek naiads, the nymphs of water elements. They have the ability to suck all the water in a swamp or lake. Also, many old folks believed that they use water to attack their enemies. They discharge a large amount of water (just like a fire extinguisher) to their victims until they drown.