Cygnus Hyoga (白鳥星座の氷河 Kigunasu no Hyōga?, Hyōga meaning "glacier") is calm, collected, and unemotional. Beneath the surface, however, he is passionate and devoted to his ideals. As a Saint born under the Cygnus constellation, Hyoga is able to control and manipulate ice and snow as he pleases, as he mastered the basis of the technique of the Saints of ice, stop the atoms of matter by the power of their Cosmo. By increasing his cosmos, Hyoga can freeze objects and people. In his fight against his master, Gold Saint Aquarius Camus, Hyoga awoke the 7th sense and used absolute zero air, being able even to freeze the Gold Cloths, surpassing his teacher. In the Hades Arc, Hyoga was able to use a variation of the Freezing Coffin of his teacher but it was not named.
The Cygnus Saint's favorite technique is Diamond Dust (ダイヤモンドダスト daiyamondo dasuto?), a windy attack that blasts ice and snow at the opponent in a single, concentrated point. Hyoga has used this technique for other purposes, like creating a mirror that reflects certain attacks or performing this attack in the legs of the opponent.
Before learning Aurora Execution his most powerful technique is Holodnyj Smerč (ホーロドニースメルチ Hōrodonī sumeruchi?, Cyrillic: холодный смерч, meaning "ice tornado"; renamed "Aurora Thunder Attack" in the anime). It is the a technique that captures his Cosmo into a single tornado, of which is unleashed via an uppercut. It is a move that, is in essence, a more powerful variation of "Diamond Dust." The "Aurora Thunder Attack" clasps both of Hyoga's hands together as he expels snow and ice at the opponent.
Hyoga learns Aurora Execution (オーロラエクスキューション ōrora ekusukyūshon?) directly from battling his master, Gold Saint Camus of the Aquarius. "Aurora Execution" is a Gold Saint level technique that enables the user to have control over absolute zero, a point where everything becomes frozen. "Aurora Execution" is similar to "Aurora Thunder Attack" in execution.
A minor technique Hyouga possesses is Kol'tso (カリツォー karitsō?, Cyrillic:КОЛЬЦО, meaning "ring" in Russian), with which he creates an ice ring that surrounds and paralyzes the opponent.