The Bladesinger version of extra attack lets the Bladesinger cast a cantrip as part of an attack:
Starting at 6th level, you can attack twice, instead of once, whenever you take the Attack action on your turn. Moreover, you can cast one of your cantrips in place of one of those attacks.
There is nothing in there saying the Cantrip has to have a casting time of 1 action, so RAW this works.
RAI I think mending is not intended to work this way.
Magic Stone and Shillelagh are not Wizard spells, but a Wizard could have them easily through a multiclass or feat. Not sure about RAI here.
Finally the most abuse to this comes from a medium armor XBE-Sharpshooter-Hexblade-Bladesinger who dumps intelligence to 13 and makes two Charisma-based sharpshooter attacks followed by an eldritch blast while having Shield, Absorb Elements, Counterspell, Misty Step, Tiny Hut and a bunch of rituals as a Wizard at her disposal. Despite being a powergaming move, I think this is both clearly RAW and RAI.
What do you do at your table?
Starting at 6th level, you can attack twice, instead of once, whenever you take the Attack action on your turn. Moreover, you can cast one of your cantrips in place of one of those attacks.
There is nothing in there saying the Cantrip has to have a casting time of 1 action, so RAW this works.
RAI I think mending is not intended to work this way.
Magic Stone and Shillelagh are not Wizard spells, but a Wizard could have them easily through a multiclass or feat. Not sure about RAI here.
Finally the most abuse to this comes from a medium armor XBE-Sharpshooter-Hexblade-Bladesinger who dumps intelligence to 13 and makes two Charisma-based sharpshooter attacks followed by an eldritch blast while having Shield, Absorb Elements, Counterspell, Misty Step, Tiny Hut and a bunch of rituals as a Wizard at her disposal. Despite being a powergaming move, I think this is both clearly RAW and RAI.
What do you do at your table?