The oyster-rhanas sought to rule the oceans prior to The Dark Below, and thus were hostile towards other sea-dwellers, such as the penguins. Twin Masters caught them, and forced them to work as his servants in an assault on the Trench of Lost Souls.
Powers and AbilitiesEdit
Oyster-rhanas have powerful jaw-like shells that can clamp down destructively. They can fire pearls like rapid-fire cannonballs, are noted for the ability to survive at incredible depth.