Spell Description: Bloodseeker's Revelation has its origins in the practices of an ancient and powerful entity, revered for its dominion over blood and fire. This entity could wield the spell through the sheer force of its will, expending no magic but a significant portion of its life force. In its current form, accessible to mortals, the spell requires the sacrifice of the caster's blood and the expenditure of a 10th-level spell slot, a testament to its diminished but still formidable power.
Mechanics:
Upcasting: When cast using a spell slot of 11th level or higher, the spell's physical and fire damage and the health cost to the caster is doubled for each level above 10th.
Note: Bloodseeker's Revelation bridges the gap between the arcane might of the past and the present, allowing casters to channel a fraction of the entity's overwhelming power at the cost of their own vitality and a spell slot. This spell embodies a dual legacy of destruction and enlightenment, offering a glimpse into the capabilities of a being whose mastery of blood and fire was unmatched.