En Masse's Brian Knox sat down for an interview with ZAM about how the class was evolving and changing during development. Originally, this Rogue/Warrior hybrid had heavy armor, but due to his extreme DPS output, the devs decided to concentrate more on movement and dexterity instead of damage absorption, and they downgraded his armor to reflect this.
When asked about the class' defining traits, Knox listed a combination of two skills -- Knockdown and Leaping Strike -- which, when used together, would both throw a foe off his balance and deal him significant damage. Knox spent time also talking up the Slayer's roguish abilities, such as being able to speedily dash up behind an enemy and backstab for big numbers.
Unlike most MMO rogues, TERA's Slayer is limited to using one (1) big honking sword, but En Masse doesn't think this will hurt the class' appeal in the slightest. You can read the full interview at ZAM, and don't miss our exclusive Slayer lore piece!