Cinematic fantasy YouTube thumbnail, 16:9, epic clash. Centered head-on collision of two dragon fires: brilliant pure WHITE healing flame from the left surging against roaring GOLDEN destructive flame from the right, sparks and shockwave where they meet in the middle. On the left, silhouette-lit tiny white baby dragon roaring, eyes glowing white; on the right, huge menacing black dragon with cracked golden mask exhaling gold fire. Ruined Romanesque colossal columns and stormy sky background, ash and embers. Strong symmetry, high contrast, dark background so it pops in feed. HUGE bold two-line impact text 'WHITE FIRE VS GOLD' split white-and-gold to match the flames, thick outline, mobile-readable. Small bottom title: 'A DRAGON SAGA'. Dramatic, high-CTR movie-poster look.
