The Chosen Capability stuff.

Khulari
Those who absorb the power of the sacrifice’s raw strength. This gives khulari the ability to perform enhanced physical actions. They feel a certain rivalry towards the khalvat for holding higher positions in power when they consider themselves to be of most use.

Through a doping effect, the user sends their blood into a frenzy; replicating the affects adrenaline, and increasing strength, and speed (reactive, and offensive) beyond what are their normal limitations

All Khulari capabilities will stem from this. Suggested ideas for low-to-mid range techniques allowing for them to strength their physical prowess for an off shoot cost of stamina every few turns [ 2, or 3 something similar to gate, or breath repercussion ] as a detrimental effect. High tier techniques allowing for outright paranormal/superhuman actions, i.e; manifestation of a blood entity to fight alongside them, as an embodiment of their will (some sort of summon, just an example.)

Khalvat
Those who absorb the power of the sacrifice’s raw energy. This gives the khalvat blood abilities, using the blood to perform feats. Since the start of the religion hundreds of years ago, a khalvat has always been in the position of power.

Using their own blood as a catalyst for these abilities; personally enriched with chakra -- the user is able to wield it, and shape it as they please. Into a myriad of shapes, and sizes. Their only limits are their bodies.

All Khalvat capabilities will use this as a basis. Their blood is their weapon, and it is ONLY their blood that they can control... Atleast at beginner to mid-ranges of their prowess with their abilities. The Khalvats in question are able to project their chakra through their blood stream, weaponizing it and in doingso- shaping it, and willing it as they see fit. [ Sand user with blood basically, although limitations apply beyond that. ] Not to be done haphazardly, as this is blood being spilled around and caution should not be thrown to the wind.

Allowed to attack with it, defend with it in hardened variants, or even cease damage in some cases where it might prove fatal! [ Bleeding damage can be halted, slowed down, or outright negated depending on how severe. ] For those who truly excel, they might even learn how to "invade" the body of a target with their blood through the cuts, and damage they leave. An ode to the crude Jashin ritual, but taken a step further! Why cause pain on themselves when they can simply make the target cause pain directly through the use of strong manipulation skills? Bending the enemy to their will, their blood propagates, and expands -- taking over the enemies' cells and making them nothing more for a puppet to either be used, or cast aside.