There are a number of boss encounters in the Trial of the Crusader:

* The Beasts of Northrend encounter, which is made up of three sub-encounters
o Combat Gormok the Impaler, a magnataur
o Combat Acidmaw and Combat Dreadscale, The Two Jormungar
o Combat Icehowl, a wendigo
* Combat Lord Jaraxxus, a man'ari eredar
* The Faction Champions, a PvP-styled encounter against a team of the opposite faction
* Combat Edyis Darkbane and Combat Fjola Lightbane, the Twin Val'kyr
* The Trial of the Crusader, a surprise fifth encounter that raid parties are dropped in upon