Tholian starships are small starships of characteristic shape, utilized by the Tholian Assembly during the 23rd century. These vessels are armed with plasma torpedo-like weaponry, but their most powerful weapon is the so-called "Tholian web", which is "weaved" by two or more Tholian vessels around an enemy ship, trapping it. The web can then be contracted, destroying the vessel inside. The Star Trek: Attack Wing – Tholia One Expansion Pack is the competitive prize for "The Tholian Web" episode during Star Trek: Attack Wing Organized Play.