Wererats are cunning lycanthropes with sly, avaricious personalities. They are wiry and twitchy in humanoid form, with thin hair and darting eyes. In their humanoid and hybrid forms, wererats prefer light weapons and use ambush tactics rather than fighting as a pack. Although a wererat can deliver a nasty bite in its rat form, it favors that form for stealthy infiltration and escape rather than combat.   A wererat clan operates much like a thieves’ guild, with wererats transmitting their curse only to creatures they want to induct into the clan. Wererats that are accidentally cursed or break loose from the clan’s control are quickly hunted down and killed.   Wererat clans are found throughout urban civilization, often dwelling in cellars and catacombs. These creatures are common in the sewers beneath major cities, viewing those subterranean areas as their hunting grounds. Rats and giant rats are commonly found living among wererats.