Blood Surge

$?diff23|diff8[The Coaglamation roars, inflicting variable Shadow damage to players within a variable radius and creates a growing pool of black blood at its location.][The Coaglamation excites the blood reservoirs causing black blood to spill outward from them and form pools.] Players standing in these pools suffer variable Shadow damage periodically and their movement speed is reduced by a variable amount while standing in the area.