Tsaindorcus Vaision

Platinum Dragon Lord (白金の竜王) is a member of the Dragon Lords, the most powerful dragons in the New World.

Personality
It seems that the Platinum Dragon Lord is good-natured, as it respects colleagues, and it helped humans to fight against the Evil Deities. As a former member of the Thirteen Heroes, it is friendly with a few humans in the group that it know of like Rigrit.

Background
The Platinum Dragon Lord is a Dragon Lord who guards items of the Eight Greed Kings, including the guild weapon. It regards YGGDRASIL players as severe threats to the world. 200 years ago, it controlled an armor as a fake identity and helped the Thirteen Heroes. Later the Platinum Dragon Lord revealed its true identity, which made colleagues complain about the deception over and over again.

The Invaders of the Large Tomb Arc
Platinum Dragon Lord is visited by Rigrit and asks her for help to gather information about YGGDRASIL's special items.

Abilities and Powers
Rigrit regarded him as the strongest being in the world. Thus the Platinum Dragon Lord might be the strongest Dragon Lords at present. Evileye thought Jaldabaoth is as strong as the Platinum Dragon Lord, yet this description means both of them are over the estimation of Evileye so the exact power level is still exactly unknown. The Platinum Dragon Lord also fought against Shalltear by controlling his armor. It seems that the Platinum Dragon Lord was inferior to Shalltear in that condition. He is one of the few users of Wild Magic.

Trivia

 * The existence of an enemy stronger than the Black Scripture (except Zesshi Zetsumei) is already suggested in Volume 3. Shalltear didn't wear her armor while she fought against the Black Scripture, yet she is fully equipped when Ainz found her.
 * It is likely that the Platinum Dragon Lord's residence is within the floating city of the Eight Greed Kings, as it is preserving their guild weapon. If the Eight Greed King's guild weapon were to be destroyed by any means, this would also mean destruction of their guild headquarter.
 * In Web Novel, the Platinum Dragon Lord doesn't notice Nazarick until the end of former part. Rigrit informs it about Ainz Ooal Gown in the epilogue.
 * In the web novel, he is one of the leaders in the Agrand Council Alliance.