World Bosses are large raid level bosses that can be found on various planets in the Old Republic Galaxy. In most cases these bosses will require a full raid party, but that extra bit of effort will yield a rewarding challenge, a nice bit of loot, and a codex entry. Once a world boss has been taken down there is a reset timer, usually somewhere in the range of 2-3 hours but it will vary slightly between each. All bosses also have a “Terrifying” buff that will incapacitate any companions when the encounter is initiated.
Star Wars: The Old Republic