Bladesinger Wizard

Multiattack. The bladesinger makes two Longsword attacks. It can replace one attack with a use of an Arcane Burst.

Longsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) slashing damage.

Arcane Burst. Melee or Ranged Spell Attack: +7 to hit, reach 5 ft. or range 120 ft., one target. Hit: 19 (3d10 + 3) force damage.

Spellcasting. The bladesinger casts one of the following spells, using Intelligence as the spellcasting ability (spell save DC 15, +7 to hit with spell attacks):

At will: light, mage hand, message, prestidigitation

2/day each: counterspell, mage armor, shield

1/day: fire shield

Bladesong (4/day). As a bonus action, the bladesinger can start a Bladesong, which lasts for 1 minute until incapacitated, the bladesinger dons medium or heavy armor, or uses two hands to make an attack with a weapon. The Bladesong can be dismissed at any time requiring no action. While the Bladesong is active, the bladesinger gains a +3 bonus to their AC, walking speed increases by 10, advantage on Dexterity (Acrobatics) checks, and a +3 bonus to Constitution saving throws made to maintain concentration on a spell.

Song of Defense (Recharge 4-6). The bladesinger can redirect their magic to absorb damage. When the bladesinger takes damage, it can use its reaction to reduce that damage by 15.