Flaming Weapons. When the warrior hits with a melee weapon, the weapon deals an extra 1d8 fire damage (included in the attack).

Spellcasting. The warrior is a 5th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 13, +5 to hit with spell attacks). It knows the following sorcerer spells.

Cantrips (at-will): blade ward, fire bolt, sword burst
1st level (4 slots): expeditious retreat, magic missile, shield
2nd level (3 slots): cannon blast (new), misty step
3rd level (2 slots): fly, swift ward (new)

Weapon Bond. The warrior has one bonded weapon. The warrior can't be disarmed of that weapon unless it is incapacitated. If the weapon is on the same plane of existence, it can summon the weapon as a bonus action on its turn, causing the weapon to teleport instantly to its hand.

Multiattack. The warrior makes two greatsword attacks. It can replace one of these attacks with casting a cantrip.

Greatsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage plus 4 (1d8) fire damage.