Hero, Class and Skills FAQ and Errata

Knight, 'Guard':
This card should read, 'When a monster moves into an empty space adjacent to you, exhaust this card to interrupt that monster's activation and perform an attack with a Melee weapon. After this attack is resolved, if the monster was not defeated, it may continue its activation.'
Source: Official Errata

Q: Can the Knight use 'Advance' to move without performing the attack?
A: Yes.
Source: Official Errata

Q: When Immobilized, can a figure use skills and abilities that allow movement not related to a move action?
A: Yes. Any skill or ability that does not refer to performing a move action may be used while a figure is Immobilized. This includes skills or abilities that remove a figure from the map and place it in another space, skills or abilities that allow a figure to move an amount of spaces based upon its Speed, and skills and abilities by which a figure can gain movement points.
Source: Official Errata