Gyruda

Gyruda is a legendary demon kraken from the plane of Ikoria that churns up the sea with death and insanity.

Gyruda is known to feast on trade ships by the sailors of an Ikorian coastal town. The planeswalker Vivien Reid, attracted by the tales of the demonic kraken, tried to charter a boat to investigate, but she couldn't find any willing captains. Vivien wonders if the monster is the fated companion of a bonder.