Way of Pankration

Based on the Iroan myth of Kelephne the Victor. This strength based, no holds barred, martial art was a popular sport, and one of the first Olympic Games. 

Practitioners are called Pankratrix in honor of its founder being female. 

This style is primarily Strength based as opposed to Dexterity based, and focuses on grappling, and striking while grappling. 

In the Way of Pankration, Ki is called Pneumaeon meaning Breath of Life

Designed to have a thematic Theros monk subclass.

Pankration

• A Pankratrix can use an attack from his Flurry of Blows ability to make a grapple attempt.
• A Pankratrix can spend 1 pneumaeon point to make this attempt at advantage.
• A Pankratrix can hold his breath from an additional number of rounds equal to his proficiency bonus. 

Somarmaron

Starting at 3rd level a Pankratrix may calculate his Armor Class using his Strength modifier instead of his Dexterity modifier.  So that unarmored a Pankratrix would have an AC = 10 + Str Modifier + Wisdom Modifier.

Pammachion

• A Pankratrix gains the grappler feat. 
• A Pankratrix can attempt a grapple check on opponents two size categories larger than himself. (ie. A medium sized Pankratrix can pin huge sized creatures)
• A Pankratrix is not considered grappled when grappling an opponent, and is not considered restrained when pinning an opponent.
• A Pankratrix can spend 1 pneumaeon point to make a pinning check after making a successful grappling check, and can spend an additional pneumaeon point to make this check at advantage.  

Relentless Combatant

When reduced to 0 hit points, but not killed outright, Pankratrix can make a Constitution Saving Throw with a DC = to 10 or half the damage dealt to instead remain at 1 hit point. They can do this a number of times = to their Constitution modifier per long rest.  

Akamatos Kelemne

• Pankratrix can spend 1 pneumaeon point to grapple creatures three size categories larger than themselves. (ie. A medium character could grapple gargantuan opponents)
• Pankratrix can travel for 12 hours per day before suffering the affects of a Forced March, and make Forced March Constitution Saving Throws at advantage. 
• Pankratrix can spend 3 pneumaeon points to attempt to suffocate a pinned opponent. The Pankratrix makes a 3rd grapple check on the pinned opponent, if successful the opponent makes a Constitution saving throw, on a failure he is dropped to 0 hit points, on a success he instead begins suffocating.