So sorry for such a silly question, but I cannot find my answer anywhere I've looked. How does block work, I know that when I use shelltron (or get a block) it shows 15-19% blocked now, does that mean in essence that Shelltron (for example) is a 15-19% dmg mitigation for 4 ( or later 6) seconds? Or is there more to it than that simple dmg reduction?