Symbiote Vigilante Subway Transformation

A hyper-realistic cinematic scene of a muscular anti-hero merged with a black alien symbiote inside a dirty subway train car. The character is mid-transformation, covered in a glossy black organic suit with sharp tendrils extending from his arms and shoulders. A large white skull emblem spreads across his chest, resembling a dark vigilante symbol. The symbiote appears alive, wrapping and stretching outward like liquid shadow.