Dark Ruler Ha Des

He first appeared when he dethroned(can see in "Demotion" card) "Dark King of the Abyss" and ruled over darkness.

He was a merciless tyrant(can see in "Order to Smash" card) who built an entire army of shadow creatures. "Opticlops" and "Berserk Dragon" were apparently the creatures he valued the most.

He was often seen having dealings with shady persons(can see in "A deal with Dark Ruler" card).

Besides his army, he was extremely powerful by himself, being able to control the free will(can see in "The Puppet Magic of Dark Ruler" card) or destroy his enemies(can see in "Raigeki Break" card) in many ways(can see in "Soul Demolition" card).

However, he eventually lost control(can see in "Skill Drain" card) until one day he was confronted by his rival(that is Dark King of the Abyss) who fired a hate buster(can see in "Hate Buster" card) against him.

The result of the battle was fatal for the "Dark Ruler Ha Des".

However, that wasn't meant to be the end, since he somehow revived(can see in "Revived King Ha Des" card), faced his nemesis(can see in "Destruct Potion" card) and ultimately defeated it, thus ruling over darkness once again.