Sorry to resurrect this thread but my question is relevant here.

Is speed useless? You guys just casually dismissed Victoria Bride as being weaker even though she has 100 more speed than Dianthus. I guess I just have no idea what speed does.

Also, should I just grab Dianthus because she's stronger, or try to make a synergystic team with my 5* girls? I don't really have a clue how team-building works. I have Rhododendron, Belladonna, Eucharis, and Dayflower fully equip/skill unlocked, and Camellia Bride without any unlocks. Could also go farm some reissued 5* event girl if need be.