Don't fly off half-cocked before you read this. TL : DR: Strip Power Out from Controller's and have them buff the group in more ways and to compensate raise everyone's power regen by a flat amount. Controllers used to be...well controllers. They used to CC/stun targets and they used to do what the old description used to entail which did not used to include giving power as part of the description, but before the revamp controllers were seen to purely exist to power the tanks/heals/DPS. And adds don't stay stunned by the troll for more than a sec or so before they continue trying to 1 shot the tank roles in the group. Now thankfully the revamp made everyone largely power self sufficient except for the few healers that spam n' hope heal or the DPS that DPS the boss when he's taking 1's then complain that they have no power while just mindless pressing buttons like a chimp. And artifacts especially in the case of PHR with healers have made controller power out largely irrelevant. On a personal note, I buff troll and have not used my traditional troll armory since I started using the claw because of the reasons I've listed above. And I've talked to other controllers out their both people I run with and others that I just see in pugs and all of them say that ever since they started using the Claw artifact they've never stepped foot back to into traditional battery/shield spam trolling. Sure their is the ever present toxic bunch that will kick you for not using EoG or buff troll (screw those people) and those people are not super common in the community, not from what I've seen at least. So here is my suggestion, as the title says strip power out from the controller role completely and get back to stunning/CCing things, have more abilities built into the powerset that buff the group in different ways and treat the buff troll artifacts like Claw/Cog/Tetra as icing on the cake. And raise everyone's innate power regen by a flat amount from there current values.