Waving the black flag
As Blake, Randal, and Reggie struggled against the overwhelming pressure, their faces contorted with pain and effort, Duncan began weaving his final technique. Blood rose from the numerous wounds on the rooftop, swirling and mixing with tendrils of shadow.
"Blood and Shadow Fusion: Eclipsing Chains," Duncan intoned, his voice filled with dark triumph.
The mixture of blood and darkness solidified into gleaming, obsidian-like chains that wrapped around the three binding them tight. They cried out in unison as Duncan lifted them into the air with a gesture, suspended helplessly before him.
Blake struggled against the chains, his face contorting with pain and frustration. "How... how are you doing this?" he gasped.
Duncan's eyes gleamed with satisfaction. "Your techniques were impressive," he admitted, his voice almost gentle. "But in my hands, they transcend their limitations. This is the power of true adaptability, the mark of a god among vampires."