How weak effect? It's supposed to reflect 5% of the damage taken per reflect item... = 7x5 = 35% with full set and rings +ref, so if you do 1000 dmg to the guy, you take back 350 dmg from reflect
Yes, this is how it works. In previous updates the default setting was great, PvP Bk vs Bk. Now, with the implementation of character balancing, there is no longer a double death.