La Lillian +Res -hp

Gronnblade+ and Death Blow, G Tomebreaker.

Gronnblade+ and Death Blow, G Tomebreaker.

She works well as a blade unit, while buffed by hone and fortify cavalry. Her speed is not beyond repair, hence going fury/desperation can be considered. If she also has a spd+3 seal equipped, combined with hone and fury, she reaches 42 speed at a neutral speed nature.

On the other hand, you can abandon speed completely and try transforming her into a nuke, at which point she would prefer death blow over fury, accompanied by an atk+3 seal.