Gravity Warrior

Gravity warriors prove themselves to be formidable melee fighters. With the ability to manipulate their own weight, gravity warriors can quickly destroy their enemies in close combat and place themselves on the front line of any battle faster than the more traditional fighters can. While gravity warriors are fast and strong, they possess limited abilities to negate damage and rely heavily upon clerics and other healing classes to keep them alive.

Strength is a vital ability score for gravity warriors, as most of their class abilities center around it. Constitution gives the gravity warrior more durability, with which to survive being on the front lines. Dexterity is not the gravity warrior's focus, but is possibly a good choice if one wants to take the Two-Weapon Fighting feat, while Intelligence allows the gravity warrior more flexibility.

Fast Movement

 A gravity warrior's enhancement bonus to his speed increases. - Movement speed increases by 20 feet.

Pseudo-Strength

The gravity warrior's enhancement bonus to Strength granted. - Gain proficiency in Athletics, if you don’t already have it.

Earth Hammer

a gravity warrior gains the ability to focus an even greater amount of gravity into his fist, increasing its weight to the point that as it falls the air around it is blown back from its momentum. His fist gains so much weight that the only action he can take is to punch the ground beneath him, creating a shockwave that hits all enemies within his radius. -  Creatures within 20 feet of the Gravity Warrior must make a Constitution check (10 + Prof + Con modifier). Those who fail are knocked prone, stunned for 1 round, and take (1d10 + Con) damage. Usable once per short rest.

Steadfast

a gravity warrior gains the ability to weigh down his body, making it much more difficult to perform a number of combat maneuvers on him. For the purpose of resisting. - Gain advantage on checks made to resist being moved.

power surge

he or she hit the ground again even harder. - Earth Hammer can recharge through the use of an action surge.

Impact

a gravity warrior gains the ability to make an object less cumbersome without decreasing its striking force , allowing him to put his full strength into an attack. When a gravity warrior is wielding a weapon in two hands he adds twice his Strength. - Once per short rest, you may add your proficiency bonus to damage with a melee weapon.

Proficient Earth Hammer

a gravity warrior gains the ability to focus so much gravity into his hand that his fist moves with such speed and force that it creates a burst of light and heat in addition to a shockwave. His fist punches the ground beneath him, creating a burst that hits all enemies around him. - Earth Hammer’s damage increases to 2d10 + Con. In addition, whenever you hit an enemy with an attack, you deal 1 additional damage.

Leaden Weight

 A gravity warrior eventually learns to bend gravity to his will with such ease that he can make an object weigh several times more than before, yet lift it as though it was weightless. - a Gravity Warrior’s control over his own gravity is so great that he can manipulate his own density. Upon being hit with a critical hit, he can instead opt to take regular damage. He may only do this once between long rests.