Compound Elemental Fusion Spell: Fire-Snake + Stellar Speed + Death Rot
With this urgency in mind, Eren opted to unleash an untried Compound Elemental Fusion spell, a fusion amalgamating three disparate elemental profiles. His prowess in fire, time, and death mana converged as he conjured an entirely new entity into existence.
Eren's incantation birthed a fire snake, distinct from his typical fire-element serpents. This one possessed a unique appearance, compact and agile. Unlike the mana body characterized by vivid orange and red flames seen in his conventional creations, this snake exhibited a blackish-red hue, a clear indicator of its potent death mana infusion.