Jetshift/Frezyn, The Ancient Ice Dragon

Frezyn, The Ancient Ice Dragon is a post-Moon Lord boss that is fought in the Snow biome.

Spawn
Frezyn does not spawn on his own and must be sommoned with the in the Snow biome at Night.

Behaviour
He behaves similar to a Wyvern, flying through the air and burrowing through blocks. Howecer, he will shoot projectiles and breathe ice-fire at you.

Trivia

 * Frezyn's theme is Frostbite Frenzy.
 * This theme has motifs to Roar of the Jungle Dragon, which is a track from Calamity Mod.
 * Frezyn is a replacement for an incomplete and scrapped boss, Blizzados, who was a buffed Ice Golem at the time of the mod's original release.