Not alot is known about the Manta. Everything that can be learned about it is in the Warcraft Novel : Day of the dragon. At a certain point of this book, Krasus or Korialstrasz as they call him in his dragon form, needs to talk with the Dragon Aspect Ysera. To do this he takes a small vial of black liquid and then it is said : 3 drops of this liquid on the arrow of a crossbow killed the Manta : A creature 10 times bigger than Deathwing that was thought to be Invincible by almost everyone. He called the beast Behemoth of the deeps.—The preceding unsigned comment was added by Kelidor (talk · contr).