Character from A Song of Ice and Fire by George R.R. Martin
Cream-and-gold dragon named for Daenerys's brother Viserys. Killed by the Night King's ice spear beyond the Wall, then reanimated as an undead ice dragon breathing blue flame that shattered the Wall.
Viserion was the gentlest of the three dragons — cream-colored scales with golden horns and wing membranes, named for Viserys though far nobler than his namesake. He was struck from the sky by the Night King's ice spear during the expedition beyond the Wall and sank into a frozen lake. The Night King raised him as an undead thrall with burning blue eyes and blue dragonfire cold enough to shatter the Wall itself. As a wight dragon he became the instrument that allowed the army of the dead to breach the Wall at Eastwatch, fundamentally changing the war.
A dragon with pale cream-and-gold scales that gleam in sunlight, the most beautiful of the three. Golden eyes and golden horns. Breathes golden flame. Named for Viserys Targaryen. After being killed by the Night King's ice spear, he is reanimated as an ice dragon with torn wings, blue eyes, and blue flame capable of shattering the Wall.
Also known as: Viserion, The Gold Dragon, Ice Dragon