Sculk Blizzard

The Sculk Blizzard is the final boss of Hollow Knight: Shadowblade. It is made of pure Sculk and adapted to the environment of the Frostbitten Peaks by covering itself in ice spikes and snow.

Location
The Sculk Blizzard is located at the very peak of the Frostbitten Summit. Facing it requires that all three seals be obtained first.