A wise Rogue once said some wise words; 'don't get hit'. Seems like those words are worth living by.
Many skills can deal damage without checking Evade. The Rogue does not play by the rules, however, and any time they take direct damage from most skills, they can evade it partially, reducing the damage taken, based on Rank (halved if not a Rogue main class).Armor affects the reduction; Light Armor is half the listed value, while Heavy Armor negates it entirely. (Does not take effect if Invoking, Guarding, Stunned, or Knocked Down.)