The Jedi Knight class has three talent trees at its disposal. Jedi Knight Specs & Talent Builds Advanced Class: Jedi Knight Guardian The Focus talent tree imbues the Jedi Knight with stunning Lightsaber skills as well as advanced Force techniques.
In addition to two class-specific talent trees, the Jedi Knight advanced classes Guardian and Sentinel both have access to the talent tree Focus. Once the Jedi Knight exits the state of combat, spare Focus power gradually decays until the bars is completely empty again. To execute strikes with the Lightsaber, the Jedi Knight requires Focus power which is generated by engaging in combat. In battle he relies upon his skill with the Lightsaber and his ability to focus the power of the force. The Jedi Knight is a master of melee combat.