Soil

Crystalized lives are harvested from any living creature and processed into soil; every creature can be processed into soil and the results yielded can be extremely different depending on the life. Soil is extremely malleable and can be conformed to various uses. Clerics, paladins, and warlocks are used to connect a non-prophetic person to a God with the promise of harnessing those granted abilities. Druids and rangers can tie back to nature itself. Magic user soil is extremely powerful if the wizard or sorcerer is strong and can generate powerful soil capable of granting new abilities or improving original ones. Based on specific abilities the soil that resembles sand is colored specifically for a class of adventurers and a subclass.
The lich Riament has found the use of soil to keep his dead crew around to serve him in undeath as he pursues his desires. It is also a connector of all living things and is the reason why the war forged is controllable by certain ones as well as Riament and his "brother" and "sister". Each of them has a small sliver of a part inside of them that has been fabricated with soil that ties them all back to him and a higher power. This was from many painstaking experiments gone wrong and many constructs being destroyed over and over again until the proper formula was perfected. It is a step in the direction of control; however, being able to bridge the gap between mortality and a God is still very much out of reach. Magic users provide the conduit as it is the most malleable and attributes can be obtained when mixed with other soils. 
When ingested though, there is a 5% chance that an attribute will show in the humanoid taker. It also leads to dreams and memories of those from within the soil bubbling up to the surface.

Oath of Devotion(PH) - Light, Lawful, Honesty, the pure holy warrior	Paladin	A blade storm of bonds, Devotion Viridian!
The Hexblade(XG) - A magical pact with an entity that is or gifted a powerful weapon.	Warlock	A bladestorm of bonds, Hexblade Viridian!
Oath of the Ancients(PH) - Joy and love, the ancients blessed this warrior with nature	Paladin	A completeness that goes through solid ground, Ancient Brown!
The Fiend(PH) - A magical pact with a demonic or devilish entity	Warlock	A cry of the cursed darkness, Fiend White!
Circle of Wildfire(TC) - Wildfires bring about change, ecosystems always revive	Druid	A heat that will scorch all creation, Wildfire Red!
Oath of Redemption(XG) - A warrior that uses words instead of the sword	Paladin	A prideful gale, Redemption Gold!
Circle of the Shepherd(XG) - Like a shepherd, you protect the animals of the world.	Druid	An infinity that surpasses the heavens, Dream Blue!
Oath of Vengeance(PH) - Anger and vengeance, something bad pushed this warrior to seek vengeance	Paladin	Bubbling and boiling blood, Vengeance Crimson!
Hunter(PH) - A warrior who hones different parts of their fighting style to hunt	Ranger	From the eternal vitality of life, Hunter Evergreen!
Horizon Walker(XG) - These hunters seek out creatures from other worlds to end them	Ranger	Grinding and devouring rocks, Horizon Gray!
Circle of Dreams(XG) - The Feywild’s nature has blessed you with power to heal.	Druid	More infinite than the open sky, Dream Blue!
Monster Slayer(XG) - These warriors hunt down to slay powerful monsters	Ranger	That which can even feed on empty space, Monster Slayer White!
Oath of Conquest(XG) - Destruction and Victory, nothing will stop this warrior.	Paladin	The critical point of everything, Conquest Gold!
Undying(SC) - A magical pact with an entity that represents the dead.	Warlock	The cry of a soul without light, Undying Green!
Nature Domain(PH) - Serve the idea of nature, the natural world can’t ever fall.	Cleric	The daggers of an angry rain, Nature Black!
Grave Domain(XG) - Serve the idea of life and death, the balance must be maintained	Cleric	The darkness that dictates the time of destruction, Grave Black!
Trickery Domain(PH) - Serve the idea of deception, pranks or more keeps the world moving	Cleric	The deception to hollow out a dimension, Trickery Violet!
Tempest Domain(PH) - Serve the idea of change, storms are powerful and resistant	Cleric	The deep blood of the hurricane, Tempest Crimson!
The Undead(RL) - A magical pact with a powerful deathless being that defies the cycle	Warlock	The desire for an endless quest! Undead Purple
Oath of the Watchers(TC) - A warrior sworn to fight anything that isn’t normal	Paladin	The essence that erases all color, Watcher Gray!
Arcane Domain(SC) - Serve the idea of magic, magic is a power and a wonder	Cleric	The eye of lightless darkness, Arcane Purple!
Beast Master(PH) - A warrior who has gained the assistance of a spiritual beast.	Ranger	The flaming hot fang, Beast Master Red!
War Domain(PH) - Serve the idea of war, whether it’s war for honor or power.	Cleric	The fury that levels everything to the ground, War Red!
Knowledge Domain(PH) - Serve the idea that knowledge is power and it must endure	Cleric	The glare of obvious intelligence! Knowledge Orange!
Peace Domain(TC) - Serve the idea of peace, violence is almost never the answer.	Cleric	The hidden silence of passion, Peace Vermillion!
Life Domain(PH) - Serve the idea of life, every life and living thing is a wonder	Cleric	The light that dictates the time of eternity, Life Silver!
Circle of Spores(TC) - Mycelium has many uses and abilities, including raising the dead	Druid	The light that drives a wedge into eternity, Spore Silver!
Order Domain(TC) - Serve the idea of order and law, you are the voice of justice.	Cleric	The light that fills up your eyes, Order Yellow!
Light Domain(PH) - Serve the idea of light, it will burn back the forces of shadow	Cleric	The light that penetrates darkness, Light Yellow!
Death Domain(DM) - Serve the idea of death, everything must eventually end.	Cleric	The moment that dictates the time of extinction, Death Gray!
The Great Old One(PH) - An ancient and powerful unknown entity from worlds beyond	Warlock	The origin of all things, Great Old One Black!
Oath of Glory(TC) - A warrior that is destined for glory, fight for your destiny	Paladin	The roar of the sky engulfed in flames, Glory Gold!
Circle of Stars(TC) - The answer and guidance can always be found in the stars	Druid	The sleep that engulfs death, Star Gray!
The Fathomless(TC) - A magical pact with a creature of the deep oceans of the world.	Warlock	The soil that drinks thirst, Water Blue!
Oathbreaker(DM) - They broke an oath long ago and are cursed for it	Paladin	The soil that forbids the birth of life, Oathbreaker White!
Circle of the Land(PH) - Grown within a certain biome, your power comes from there.	Druid	The solid earth that protects, Land Brown!
Gloom Stalker(XG) - These hunters wander in the shadows to defeat creatures of the night	Ranger	The spirit that drops into infinite darkness, Gloom Stalker Black!
Twilight Domain(TC) - Serve the idea of balance, those that attempt to disrupt it must be stopped	Cleric	The squall of fortitude, Twilight Blue!
Oath of the Crown(SC) - A warrior that serves a crown or kingdom	Paladin	The strength of steel, Crown Sienna!
Forge Domain(XG) - Serve the idea of creation, the forges you touch will never fail	Cleric	The ultimate spirit, Forge Gun Metal!
Circle of the Moon(PH) - Like a werewolf, your power is based on changing forms.	Druid	Venom of the darkest sin, Poison Black!
Fey Wanderer(TC) - With the power of fey on their side, these rangers charm their foes	Ranger	The one to fill out the devilish darkness, Fey Wanderer Black!
Swarmkeeper(TC) - Insects, pixies or a similar swarm creature. These rangers take care of them	Ranger	To restrain all things, Swarmkeeper Gold!
Drakewarden (FD) - A warrior who has gained the assistance of a powerful drake that follows them	Ranger	A wave of fresh rage, Drakewarden Red!
The Archfey(PH) - A magical pact with an Archfey of the feywild	Warlock	The promise of a perfect victory, Archfey Pink!
The Celestial(XG) - A magical pact with an entity of good, law and order.	Warlock	Facing the road of extinction in a flash of an instant, Celestial Gray!
The Genie(TC) - A magical pact with a powerful elemental.	Warlock	The light after trial, Genie White!

Magic Classes are too wild and change color from transparent to whatever To Sail the Waves of the Endless Ocean,
Physical classes are enchantment based.  Fighter - Lime Green Barbarian - Crimson Bard - Magenta Rogue - Lemon Yellow Monk - Aquamarine