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Deaton, shouting to his comrades, looses and arrow and steps aside to make room for Luc, who blasts the thing with his Wand of Web.
The arrow strikes it, sticks in its torso, and the thing doesn’t notice it at all. The webs cover it and slow it a little before it breaks the web free from the floor and lumbers forward, tearing and thrashing at the web stuck to it, ripping it. It’s slowed for now, but not for long.