Earth Primordial origin

Before the world began the primordials ruled the land until the gods came and and war broke out for power. During the war a titan beyond primordials fell and the body fell across the land. until one day many centuries after the war four men found a glowing almost beating heart made of pure energy. Three of the four men wanted to harness the power for themselves but the last man wanted to destroy it. after bickering and arguing they finally all agreed to control the power of the heart. They broke it into multiple pieces to take back to their village. after harnessing this power came at a cost as well, replacing their normal hearts with pure magic not killing them but giving them intense power. After many years they passed down this cures and blessing to their children to control after they fell. 

Elemental companion

create a small elemental golem by you side that is always half your HP and has +1 to your AC. (the golem does scale with the character) if the golem dies or lost you can create a new one by spending a amount of clay equal to 3 gold or after a long rest 

Primordial Ancestor

you get a +1 INT when your golem companion is summon and a -1 when its not summoned 

Primordial resistence

when your golem companion is summoned you are resisted to being charmed, exhausted, petrified and poisoned

bond through blood

on a reaction when your compainion is destroyed you can heal for all of the hp it had left before it was destroyed and gain +1 to your armor class for 1 minute 

Master of Earth

on a action while your companion is summoned consume your elemental golem and gain its AC and all of its attacks and stats but keep you higher stats that would be higher then the golems. you can only perform this action once per long rest and lasts for one hour.