The Warden's Paean should change to be counterpart of MCH's Dismantle/Rend Mind
Bard and Machinist have same position in party. However, only thing that BRD can't do the same as Machinist is damage migration. The Warden's Paean is useless action in present from long cast time and very situation effect when compare with MCH's Dismantle/Rend Mind. It should change to be counterpart of MCH's Dismantle/Rend Mind for raise them equally. When MCH debuff foe for damage migration, dev can do opposite for BRD by change The Warden's Paean to damage migration party buff instead same as they can use Mantra from PUG for support party. This will make them equal to MCH's Dismantle/Rend Mind from Mantra (healing buff can think as one of migration tool) + damage migration song.
Note: Although Foe Requiem can increase only magical damage, but they have higher effect more than Hypercharge (with and without Battle Voice). Moreover, it have longer duration (from draining MP) and easier control (can turn on and off anytime). This still make them balancing.