Life regen enemies, and Twins boss

The life regen on enemies is just too much. Every single time I've run into one, I've had to ignore because the regen was just insane. This is someone who is doing poison, burn, and bleed damage at the same time.

Second, the reason I brought this up was the twin bosses in Deshar, these guys need longer cool down or one damage buff removed from them. As a ranger I pretty much had no window of opportunity to attack them. On top of that, I had one instance after where one of them had temporal bubble AND frozen ground, I pretty much did no damage cause my attack was like 0.25 secs. And the other one had life regen! two out of the three times I. Def needs a rework.

Playing Warrior I had problem with life regenerating enemies that tend to run away. Before I caught them they were again on full life so it was a futile fight for me.