I'd be willing to bet each of those three descriptions corresponds to some sort of hidden ability related to the description.
The first flavor text sounds like it might add some sort of "good" component like Holy Burst.
The second sounds like it might add another "lightning" component like Lightning Strike.
The third and final description sounds like it might add some sort of "bane" component like Greater Dragon Bane.
Of course, they could also be placeholders for abilities Turbine doesn't want to unveil until U17 actually goes live.