This ability allows the chieftain to summon a serpent to scare fish from the sea.
Your chieftain will play a seashell-shaped instrument, summoning the Sea Monster up from the sea. It will leap into the air and cannonball dive back down into the sea, creating an enormous splash and scattering fish all over the shore for your tribe to collect. The Sea Monster will then wave goodbye to the tribe and descend back into the deep.
It is easily noted that this is the same sea creature that will eat you if you stray too far into the ocean in the Creature Stage.