Trials of Atlantis Object Changes

Mythic's Matt Firor stopped by the Camelot Herald to talk about changes they are going to be making to overpowered artifacts and other items from the Trials of Atlantis expansion. Here's the gist of his post:
We had a strict design goal for how much more powerful players that possess these objects would be. Frankly speaking, what we designed and what ended up in the game are far far apart - a player with even one or two artifacts is much stronger than we intended, and that's not even counting the Unique Objects, regular dropped objects, or even master levels. Many Artifacts and other powerful items in ToA are on the order of 30-50% more powerful than we intended - and many of those items stack together. This is a power inflation that cannot be ignored.

So, here is the situation: players who don't have the expansion are justifiably upset that they can no longer compete with those that bought the expansion and have acquired powerful items from it - and players that have the expansion are rapidly becoming so powerful that small groups of players can successfully defeat even the game's most powerful monsters, and are extremely overpowered in RvR. Because of this, and for the sake of the integrity and balance of the game, we must make changes to many ToA items. We know that this is not a small trivial thing. It will affect everyone who bought the expansion, adventured, and acquired Artifacts or other overpowered items from it. We apologize for the trouble and pain this will cause you - but we simply cannot have such powerful items in the game.