doctorbadwolf
Heretic of The Seventh Circle
Yes, they realized melee was risky and so they buffed the Bladesinger's defenses...
...but they forgot to add any carrots (or whips) to have the Bladesinger actually enter melee!
The result is a Wizard that's excellent at spellcasting (as good as any other Wizard that isn't using any particular Tradition tricks) and why would one ever want to enter melee?
Any Bladesinger must be almost as good as a Fighter in melee (to actually do it) and significantly worse than a Wizard at regular spell-chucking (to make melee the rational choice).
This Bladesinger already exist. It's called Eldritch Knight.
I would imagine that few people who make a Bladesinger want to be slinging spells from range.
However, it is definitely a subclass that works better in an MC build, a lot of the time.
If you want to just be a bladesinger and you don't mind houserules, if you houserule a fix of some kind for the mostly wasted extra attack feature it becomes a working class. Like adding the smite spells to their spell list. Or replace extra attack with an ability to expend spell slots to add range to melee attacks.
But honestly, just play a warlock. seriously. I mean, you could mc wiz for the bladesong, I guess, but then you need a high weapon stat, high cha and decent enough wiz to make it worth it.
So, yeah...just play a warlock. You don't even have to take pact of the blade. The other ones get you either a pet or extra cantrips. If you wanna play a wizard with a sword, what better way than dealing death with a blade in one hand an a grimoire in the other?