Onyx

Onyx is the main antagonist of Kingdom Hearts Iridescence and the leader of the Dark Keyblade Wielders. He is also known as the ruler of all Fervid.

Appearance and Personality
As a human, Onyx is a tall, pale-skinned man. He sports long, black hair and golden eyes. He wears an armor that allows him to cross the Dark Corridors without danger, and wields his Keyblade, Dark Ascendancy.

When he is reborn as a Fervid, Onyx has much more spiked hair, his skin is darker and he now sports a Fervid Insignia on his armor. He no longer wields his Keyblade, and instead uses a complete version of the X-Blade.

Onyx is a cold and ruthless man, one who acknowledges both allies and enemies as tools in his scheme. He is extremely egoistical and ambitious, to the point of wanting to become a god. Despite his place as the leader of the Dark Keyblade Masters, he is not affiliated with Darkness, and does not recognize Light nor Darkness as his master, instead relying on pure Power.

Quotes

 * "Behold that beautiful scenery... Keyblade Wielders of Light and Darkness, fighting for the ultimate Keyblade... But none of them will wield its power. I shall be the one to control this power... To unlock the heart of all worlds... Kingdom Hearts !"
 * "I, a Master of Darkness ? Don't make me laugh. Darkness is for the weak, those who aren't able to channel the power inside them. I am not a slave to such weakness - I am Power itself !"
 * "The X-Blade... The ultimate weapon is finally mine. I shall proceed to unlock the door that leads to the source of ultimate power. Kingdom Hearts ! Heed my call ! Give me your power, lend me your strength ! Grant me... divinity ! And you... You shall be the first to perish !"

In Battle

 * "You will disappear.*" (Battle Introduction as Human)
 * "Kneel... or perish !" (Battle Introduction as Fervid)