What this means is Enemy powers would be treated more like Gear with Item levels. Meaning you grow out of some powers and stop using them as often. Some Enemy powers could have a Prerequisite for a similar, but Weaker power to learn. The Best example is the Cactaur Needle Attacks. From 100 to 20,000+ needles, we have attack levels ranging from Beginner to Endgame Content. Speaking of which, some of the Signature moves of Boss attacks could be put into the Blue Mage's "Limit Break" Box. Basically, unless they have limit break charged to 1, 2, or 3 (depending on the power scale), they can't imitate that particular attack.

Which Role would a Blue Mage Take? Arcanist turned into a DPS-HEALER split, with DPS Base. By assigning them Shields and High Vitality, Blue Mage Could be a TANK-DPS split, with TANK Base. This is less absurd than one might think, as the first goal of a blue mage is to get hit by enemy attacks.