Wield Weapon and Wizardry in Elegant Tandem
Level 3
Bladesong.
(1/encounter) Action: If you are unarmored and wielding a one-handed melee weapon, you can concentrate on a Bladesong. While bladesinging, add your INT to your Defense and Speed, your weapons add INT instead of STR or DEX, and your concentration checks use INT instead of STR.
Training in War and Song.
You can use one-handed melee weapons as your spell focus and you have advantage on Influence and Finesse checks.
Level 7
Arcane Rhythm.
If you make a spell attack after making a melee attack (or vice-versa), the second attack is not Rushed.
Level 11
Song of Defence.
If you Defend while Bladesinging, you can spend mana to first reduce the damage by twice that amount. If you reduce the damage to 0, you can Defend again this round.
Level 15
Song of Victory.
If you crit on a spell attack, reduce the action cost of your next melee attack this turn by 1 (and vice versa).