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Killer lance + to slaying lance +, to slaying lance + (def)?
My Valentine Eliwood needs a def refines slaying lance. Nephenee is my only 5 Star with a slaying lance. Should I upgrade Gwendolyn to 5 star then let Eliwood inherit killer lance +. Plus once I upgrade the killer lance to a slaying lance, can I refine it to a +def?

Fate Grand Order
Dragonball Legends
IV Calc
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