Frozen Castle Ice Dragon Battle

A frozen castle courtyard under pale moonlight, snowstorm raging through broken battlements. A knight in dark silver armor stands alone with a cracked shield as an enormous ice dragon lands on the castle wall, wings spreading through the blizzard. At the 2-second mark, the dragon exhales a blast of blue-white frost, freezing the ground in a wave moving toward the knight. The camera follows the knight running between ice spikes, shield raised, boots sliding on frozen stone. The dragon climbs across the tower, claws breaking stone, eyes glowing cold blue. Snow, ice shards, and broken masonry fly through the air. Final moment: the knight plants the sword into the frozen ground as blue light erupts around them. Frozen fantasy boss battle, ice VFX, snowstorm, moonlight, cinematic 4K.