Yep, agreed on all points. SWS has the added bonus of mobility, while DW can knock targets prone. Being an attack rather than a save spell also means that SWS can crit.
DW is better overall and more versatile, but I think SWS is viable and interesting for the right type of character.
It's actually a melee spell attack, which would use the bard's spellcasting ability unless I'm misunderstanding a rule. This also means that it's not helped by magic weapons - a bit of a handicap. And yes, I was planning a character who used greater invisibility and that was a factor in what I...
This looks awesome. I am also in the middle of a campaign, so can't really try this right away, but maybe I'll set up a one-shot for a night when someone can't make it for an important event-type session.
Any thoughts on Steel Wind Strike as a Magical Secrets spell? Seems like it would be useful - as well as thematic for a Valor/Swords build - and you could get advantage on all the attacks if used in conjunction with Greater Invisibility. Not as good as Destructive Wave, but an interesting...