Not sure. Looks ok. A fighter/wizard with heavy armor and shield can have an AC of 21 all the time without magic. A bladesinger with a 20 dex and 20 intelligence with light armor can have an AC of 18 all the time and 23 when bladesinging. You have to be fairly generous with stat generation to have a 20 dex and intelligence any time soon whereas the fighter/wizard has a 21 with a 10 Dex.
If they cast shield, the fighter/wizard's AC shoots to 26 and the bladesinger to 23 when not bladesinging and 28 when bladesinging.
I don't know. Seems like a huge stat investment to do what a Fighter or Paladin/wizard or sorcerer can obtain with coin quite early in levels. I imagine most will take the bladesinger to play a concept, but I don't think it is as powerful as a fighter/wizard.
If they cast shield, the fighter/wizard's AC shoots to 26 and the bladesinger to 23 when not bladesinging and 28 when bladesinging.
I don't know. Seems like a huge stat investment to do what a Fighter or Paladin/wizard or sorcerer can obtain with coin quite early in levels. I imagine most will take the bladesinger to play a concept, but I don't think it is as powerful as a fighter/wizard.