Megumin best girl. That name. Those party tricks though... Aqua is awesome just for that.

Couldn't they farm like crazy if they get Darkness to pull mobs, then Megumin can blow them up (along with Darkness, far enough from the epicenter to not die), and then get Aqua to heal her? Kazuma can just take command since his entire team seems to be retarded. And carry Megumin while gripping that tight loli ass on the way home, too.