Troubs:

Cast all songs while moving

AoE Mez that mezzes each tick, and makes you have to twist the song to cast anything else aswell. Continous drains power.

Snare that snares each tick, lasts 12secs so you can afford one to resist, and drains power.

Less interuptable charm, longer duration, less re-use time.

Dirge:

AoE Fear, same as the aoe mez.

Snare same as above

Cast songs while moving

Bring Back Twisting.