Extreme Snowboarder FPV Avalanche Chase

text[Subject: Solo snowboarder in matte black tactical winter gear] :: [Kinetics: Extreme downhill velocity, triggering a massive powder avalanche behind him] :: [Environment: Alpine peak, sheer cliff face, airborne ice crystals] :: [Lighting Rig: Harsh midday alpine sunlight, blinding snow reflection, high-contrast shadows] :: [Camera Optics: 14mm Ultra-Wide, infinite focus, f/8] :: [Camera Support: FPV Drone tracking from behind, aggressive banking, violent camera shake on impact] :: [Seedance Parameters: --ar 16:9 --motion-blur heavy --shutter-angle 90 --temporal-lock 10]