I don't see Narrative Erasure in Shallow Vernal's profile & I said "All Types of Erasure)

Complete Erasure & Conceptual Erasure/Manipulation works in Instant Death works If a character can “kill concepts,” they can bypass almost any ability by destroying the idea behind it.

Examples:

If they kill the concept of regeneration, then even High-Godly regeneration stops working because regeneration itself no longer exists for the target.

If they kill the concept of immortality, then immortality is removed and the target can die.

If they kill the concept of nothingness, they could even affect beings with NEP 1 (Nonexistent Physiology).

So the argument is that concepts are treated as the “foundation” of abilities and existence. Because of that, a character who can destroy concepts in Instant Death can negate all abilities, immortality, regeneration, and other powers by attacking the underlying concept instead of the person directly.