It's Actually Him

One shot from the Dragoon and Sheyan was already shocked speechless! A normal Dragoon could only shoot a single antimatter bolt at a time, but this Dragoon hero's cannon muzzle was like a showehead. One spin of the cannon and six horrifying antimatter bolts shot forward, bombarding the Mutalisks so hard that they howled in agony!

...

That's right, it turned out that the function of this non-standard strategic building was to summon powerful Protoss hero units, and it summoned twelve of them in one go!!

(TL: Hero units are unique units that usually represent plot-important characters or constructs, taking part in battle on the field. https://starcraft.fandom.com/wiki/Hero_unit )

The rest of the heroes marched onto the battlefield one after another like they were being paraded. There were four Zealots among the first summoned batch of hero units, making up the highest composition, while two of them were Dragoons.