Loved Thor this week. She took a beating from Destroyer and survived. Lady Thor's control over Mjolnir is awesome and I wonder if Thor would be able to replicate it when he gets the hammer back.
The energy blast and mushroom cloud were cool too.
I don't see why he can't its his powers and abilities she wielding, beside that energy blast (maybe God Blast) as well other powers he should be able do that without needing the hammer its the powers he inherited from his mother Gaea (Earth Elder Goddess) but instead all probably see is Thor swinging the axe around.