Complex sentence: He cannot speak due to a throat injury he suffered from an altercation with Storm Shadow following Hard Master's death, though Scarlett is often able to understand what he wants to convey due to their long time training together.
Split into simpler sentences: He cannot speak due to a throat injury he suffered from an altercation with Storm Shadow following Hard Master's death. Though Scarlett is often able to understand what he wants to convey due to their long time training together.