Dragon Fanatic.

The dragonsoul has advantage on saving throws against being charmed or frightened. While the dragonsoul can see a dragon or higher-ranking Cult of the Dragon cultist friendly to it, the dragonsoul ignores the effects of being charmed or frightened.

Fanatic Advantage.

Once per turn, if the dragonsoul makes a weapon attack with advantage on the attack roll and hits, the target takes an extra 10 (3d6) damage.

Limited Flight.

The dragonsoul can use a bonus action to gain a flying speed of 30 feet until the end of its turn.

Pack Tactics.

The dragonsoul has advantage on an attack roll against a creature if at least one of the dragonsoul's allies is within 5 feet of the creature and the ally isn't incapacitated.

Actions

Multiattack.

The Dragonsoul attacks twice with its shortsword.

Shortsword.

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage plus 10 (3d6) damage of the type to which the dragonsoul has resistance.

Orb of Dragon's Breath (3/Day).

Ranged Spell Attack: +7 to hit, range 90 ft., one target. Hit: 27 (6d8) damage of the type to which the dragonsoul has damage resistance.