Can this lightcone be a replacement for her sig in acheron team? (inflict debuff)

its a bp lightcone

The description reads: Increases the wearer's DMG dealt by 16% / 20% / 24% / 28% / 32% . After the wearer attacks, there is a 100% base chance that the attacked target is inflicted with Vulnerability, increasing the DMG they receive by 10% / 11.5% / 13% / 14.5% / 16% for 2 turn(s). The same effect type cannot be stacked.

if she can inflict a debuff everytime she follows up then I'm willing to buy the bp for it. it helps my acheron team alot