A little message from Zhuko, owner of our little TS. His ISP got some problems and his internet might be down for a few hours. There is a chance it will not be up by the time your raid starts. :( Sorry
Also, some abilities are reflected silently. Neither the attacker nor the target can a message about the reflect, the combat log is also saying that there is no damage, but the attacker's health is going down.
Only ridiculous reflect guardians/juggs had in pve was the walker in Kephess. Tanks on the other hand, it's not like you can just go do that boss and pop reflect and kill it. It takes some skill. Other stupid reflect classes ruined the whole thing.