Comfortably the top warrior dragon in the game right now, with Intimidating Roar, Rejuvenate and two great resists against Lightning and Trebuchets.
As Intimidating Roar is scaled to your health, the higher level you get Khrysos, the more amazing the skill gets.
Breeding Khrysos (link to Amoeba website)
Ferrox and Basileus will breed both Khrysos and Kekronos for 100k tokens.
Maximum Attack: 247,540
Maximum Health: 2,662,973