Poseidon

As a fighter of Poseidon's lineage, you are no mere mortal. Your blood carries the divine mark of one of the most powerful gods of all mythology, and you have inherited a vast array of abilities that few other warriors could dream of. Your combat skills are imbued with the raw power and elemental fury of the sea itself, and you are able to harness that power to wreak havoc upon your enemies in battle.

At an early age, you began to manifest unique abilities that marked you as special. You could hold your breath for far longer than any of your peers, swimming effortlessly through the water and easily exploring the depths. As you grew in strength and skill, you found that physical prowess was not enough to face the challenges before you. Instead, you learned to channel your divine heritage into your combat skills, infusing your strikes with the force of mighty waves.

Through your training and dedication, you've learned to access the full extent of your lineage's potential, developing abilities that set you apart from any other fighter. You can charge your attacks with lightning damage, drawing on the electrical power that surges through every wave and storm. Your enemies feel the full brunt of your fury, smiting them with blows that seem to come from nowhere and leave them reeling. You are able to push your enemies away with the force of a tidal wave, using the kinetic energy of your attacks to sweep them aside like flotsam on the sea.

In addition to your combat prowess, your divine heritage gives you potent resistance and powers. You can easily resist the cold, shrugging off the worst that winter can throw at you as if it were nothing, thanks to the baptismal waters that have marked you as one of Poseidon's own. You can breathe underwater, exploring uncharted territories and finding hidden treasures that others couldn't dream of accessing. And when the fight is at its fiercest, you can call upon the full fury of the sea itself to bring down its divine judgment upon your enemies. Even the mightiest foes are brought low by the power of your call, battered by wave after concussive wave until they are no more.

All of these abilities are a testament to your lineage and your unyielding determination to use your gifts to the fullest extent. You are a being of tremendous power, feared by your foes and revered by your allies, a force of divine retribution that commands the very power of the ocean. You are the avatar of Poseidon, and the sea and its storms are your allies in battle.

Divine Lineage

At 3rd level, your character learns that they are the child of Poseidon, giving them a powerful connection to the sea. You gain proficiency in Athletics and can hold your breath for up to 10 minutes.

Fury of the Waves

Starting at 7th level, you can channel the fury of the ocean into your attacks. Once per turn, you can add your Wisdom modifier to your damage roll when you hit with a melee attack.

Oceanic Protection

At 10th level, you gain resistance to cold damage, and you can breathe underwater. Additionally, if you are hit with an attack that deals cold damage, you can use your reaction to grant yourself or an ally within 30 feet resistance to cold damage until the end of your next turn.

Seaborne Strikes

Starting at 15th level, your attacks become infused with the power of the ocean. You can choose to deal bludgeoning damage instead of your normal damage type with any of your melee attacks. Additionally, when you hit a creature with a melee attack, you can push them up to 10 feet away from you in a straight line.

Call of the Seas

At 18th level, you can call forth a massive wave to wash over your enemies. As an action, you can spend a use of your Action Surge to create a 30-foot cone of water that deals 10d6 bludgeoning damage to all creatures in the area, and knocks them prone on a failed Dexterity save (DC 8 + your proficiency bonus + your Wisdom modifier). You can use this feature once per long rest.