I have been playing around with a build where I put ALL of my stats into HP and wear the heaviest armor I can find with reflect % and Thistle Rings.
After farming gear that matches my preference I finally had a full set of plate armor, and each piece with 3% damage reflect. Awesome.
I threw on some Thistle rings because I wanted to have a theme and Thorns.
All went well, enemies slowly damage themselves by just hitting me and It is a lot of fun.
Then Echo Knight kills itself in under a minute and that felt a bit too strong. So I checked to see why the damage is so high.
Taking off the rings, I no longer do ANY damage to the boss when being hit. 0.
When tested with Only the ring and NO reflect, the damage is as high as in the first go around.
So all in all. Thistle rings do a ridiculous amount of damage and reflect gets added to the list of affixes that are currently place holders for things to come.
I really hope your post does not cause nerfs to the rings. Nerfs suck so much and I am so tired of things getting nerfed after feedback posts. I hope this does not ruin the fun of such a build.
Could it be that the 3% damage dealt on damage taken is like 3% damage based on your current weapon equip or based on the full damage of the hit damage (this can be huge for the Echo Knight)? But, yeah, clarification would be nice.