So I can't post the link because I'm new here, but apparently, polygon.com says:
"Dark Souls 2 also introduces a new player character attribute, agility. According to the game, agility governs "swiftness of movement" and boosts the speed of evasion, blocking and other actions. At least one other character attribute is slightly different. Dexterity now boosts poison and bleed effects, according to its description."
Discusssssss.