Toa of Stone

A Toa of Stone, you have been chosen by Mata Nui to bear his mighty hammer, giving you control of stone. 

Stone Casting

Mata Nui grants you powers beyond that which is natural, allowing you to manipulate stone in ways that resemble magic. You gain two cantrips: magic stone and mold earth.

As you gain levels in this class, you learn stone-based spells. Stone is controlled through concentration, firm control and level-headedness. Constitution is your spellcasting modifier for stone spells, which require verbal and somatic components only. 

You cast spells using elemental points. You have a number of points equal to half your Fighter level, which are regained whenever you finish a long rest. The cost of each spell is shown in the Stone Spells table. 

FIGHTER LEVEL	SPELLS	ELEMENTAL POINTS
3rd	catapult, compelled duel	1
5th	shatter, dust devil	2
9th	meld into stone, wall of sand	3
13th	stoneskin, stone shape	4
17th	Bigby's hand, wall of stone	5
20th	investiture of stone, bones of the earth.	7

Hard as a Rock

Beginning when this archetype chooses you at 3rd level, your hit point maximum increases by 3. Whenever you gain a fighter level thereafter, your hit point maximum increases by an additional 1 hit point.

Additionally, you can choose a number damage types equal to your Constitution modifier, other than Psychic or Necrotic, to gain resistance to. Whenever you gain a level in this class, you may exchange one resistance for another. At 10th level, you permanently become resistant to all damage, except Psychic, Necrotic, and Force damage. 

Steadfast Ally

Starting at 7th level, you punish enemies for attacking your comrades. Whenever a friendly creature other than you takes damage, you can use your reaction to make a weapon attack against the creature that dealt the damage. If they are out of your range, you can instead move up to half your movement directly toward them. 

Staggering Critical

At 10th level, your critical strikes send a shockwave through the ground. On a Critical Strike, all enemies within 10 feet must make a Strength saving throw against a DC using your Constitution, or be knocked prone. The creature you struck initially makes the save at disadvantage.

Of the Mountain

At 15th level, you know your strengths, and dodging isn't one of them. You can expend a use of your Indomitable feature to change a saving throw type to Constitution. You can use this feature before or after you make the roll, but you must take the first roll if you change it to Constitution. 

Survivor

At 18th level, you attain the pinnacle of resilience in battle. At the start of each of your turns in combat, you regain hit points equal to 5 + your Constitution modifier (minimum of 1 hit point). You don’t gain this benefit if you have 0 hit points or if you have more than half of your hit points left.