Cataclysm weapons: SEVEN WEEKS!?

[Penthea]

the do have enrages actually.

I don't know about the current Eden normal tier, not done it enough times. I do know that E1 has an enrage mechanic with the adds. Many normal mode bosses throughout the game have enrage timers. It's just rare that they cause an issue after week 3 because by then most people know what to do so they die less, which means less dps loss.