Guild Wars 2

Many people are claiming the infusion slots are just for mitigating agony damage only, but that leaves me wondering why there are different infusion slot types (omni, offensive, defensive)? What are the different infusions available? How does a defensive infusion differ from an offensive one?

My guess is that they would apply boosts in determining how you control agony. Offensive may cause agony to hurt you more (but less than what would happen without infusion), but you would get boosts to stats that may give boosts to your damage. Defensive would work the other way around. Omni may just be an in-between. As for why the different slots, I would assume that it would just be so some gear is defensively oriented, or some would be offensively oriented. I don’t know much after that.