Ocean Master

Like all squid, the Giant Squid has a mantle, 8 arms, and 2 longer tentacles which are the longest known tentacles of any cephalopods.

The inside surfaces of the arms and tentacles are lined with hundreds of subspherical suction cups, each mounted on a stalk. The circumference of these suckers is lined with sharp, finely serrated rings of chitin.

These serve to help the squid attack and attach itself to prey.

The Giant Squid has a sophisticated nervous system, which attracted great interest from dissectors like Sebastian in his previous life and they also have the largest eyes of any living creature. 

For Sperm Whales, they are the largest of the toothed whales and the largest toothed predator. It uses echolocation and vocalization as loud as 230 decibels, which means their ability to locate objects underwater by reflected sound.

It also has the largest brain known of any modern or extinct animal.

They have a very narrow and underslung jaw, with 18 to 26 teeth on each side of its lower jaw which fit into sockets of its upper jaw. Also, the teeth are cone-shaped and weigh up to 1 kilogram each.

These statistics put these 2 predators at the absolute top when it comes to their specific family, genus, and species. They were the G.O.A.T of their species.

As Sebastian looked on at these 2 battling predators, memories flashed through his brain at a rapid pace as the properties of these 2 gigantic predators even on earth were recalled. 

As an anatomist, the relationship between Giant Squids and Sperm Whales was one of the few subjects that always interested him when sharks were excluded.

What he didn't know and expect was that he would get to meet this relationship firsthand, and it was not pleasant at all.

Boom!

The enormous Sperm Whale towering at a size of about 30 meters accelerated again, inducing a sound like that of a canon being shot as the water parted to form mini-tsunamis.

At this moment, the Giant Squid that was battling with it currently had all its arms and tentacles wrapped around the giant head of the Sperm Whale.

In such a manner, both gigantic predators battled it out.

The sharp rings of chitin lining the circumference of the Giant Squid's arms and tentacles were currently inside and still digging inside the thick skin of the Sperm Whale as every part of the sea that they passed was dyed red.

It kept on grinding with its arms and tentacles, shredding enormous chunks of meat from the Sperm Whale who reacted in an even more aggressive manner.

The Sperm Whale accelerated at intervals, hitting the Giant Squid that was attached to its head against any obstacles on their part.

The Giant Squid was already bleeding also, having suffered numerous impact damage which served to show how long this battle has been going on.

The Giant Squid had a red magic field around its tentacles as they dug inside the body of its opponent, spreading hot fire inside to deal even more damage as its fire domain magic wreaked havoc.

For the Sperm Whale, it controlled water magic. All it did was transform the water to form thick obstacles on its part which it hit the Giant Squid with, dealing astronomical damage with each hit.

At other times, it formed colossal heavy water structures to hit the Giant Squid with, dealing even more damage in the process.

Also, around its body glowed a light blue magic shield membrane. This sturdy defense shield was the main reason why it hasn't succumbed to its opponent's attacks yet, the shield resisted tenaciously despite the intensity of the battle. 

As they battled, rolling aggressively through the water and inducing tsunamic waves, the jellyfishes in their path suffered for it.

The poor jellyfishes were crushed to meat paste on impact, leaving only mangled blood and flesh in their wake as tons of jellyfish meat were left behind.

Each tail fin flap from the Sperm Whale sent tons of jellyfishes dying. Each impact against the water seemed to create natural disasters, sending shockwaves and sounds like an apocalypse was at hand.

The Giant Squid was even worse. As it attacked the Sperm Whale, the latter's erratic movements meant that its tentacles and arms also flailed wildly at times, and at these times, the jellyfish were the poor fellows who suffered the impacts.

Each occasion when this happened, the poor jellyfish were shredded apart like a bunch of cattle in the butcher's den with no other fate than to suffer slaughtering.

Seeing this titanic battle between these 2 predators, a serious expression quickly came over Sebastian's shark face. At this moment, Tosh and Shanks were already shaking in fear just like the jellyfishes.

"Shanks…, swim as far away as possible. Now!"

The young shark did not dare say a word, he turned and swam away as fast as its tails could carry it, going against the raging waves that were already induced by the battle. As soon as it left, Sebastian turned to face Tosh.

At this moment, the impact of this titanic confrontation already spread towards the surrounding. The enormous shockwaves alone meant that it was an impossible mission to escape intact, which meant something else should be done.

From the force, Sebastian already identified both predators as purple tier predators. He thought purple tier predators were scarce, but after knowing about them, he couldn't help but feel that he was a little naïve in how he saw them.

These guys were freaking everywhere!

Telling Shanks to escape was just delaying the inevitable. With the impact being induced by these 2 predators' battle, if no one intervened, everyone in the vicinity had a guaranty of dying.

Sebastian thought and thought but couldn't arrive at an alternative.

"We have to fight!"

"What?" Tosh shuddered, directing a pitiful look at Sebastian.

"You're a shark for freaking sake, not a crab, understand?"

Tosh nodded, suddenly feeling a little challenged after one of his sore spots have been rubbed the wrong way by his team leader.

"Now, listen to all I'm about to say". 

"We're going to go out there, and we're going to kill these 2 predators to show them that they have no right to disturb the peace of everyone just because they have a feud".