Sigils of Hope - Word of Power

Who thought it was a good idea having to cast Sigils manually to keep the buff ?
Duration of Word of power is only 3 seconds. And the dmg buff is quite substantial.

But damn it feels bad if you have to recast it every 3 seconds with skills like and rive.
The way I see it the only method to reasonably use it is by speccing into Exigency and put it in numb-lock auto-cast.
There is no way I will cast it manually every 3 seconds. Why ? Cause its not fun!
And I dont have any other skill I could replace it with.

Using Rive-Void cleace-Healing Hands- Volatile reversal.