Supercharge currently have a chance to refund 3 msw spent on basically any spender, it should stay like this. The talent should work like this.
Also, add elemental blast to awakening storms.
Maybe this is not the thematic that you had in mind exactly, but what are you gonna do? Buff Elemental blast? That’s not gonna feel nearly as good as just making things work properly.
And finally, make unlimited power give you haste based on msw spent stacking, this would work better for both elementalist and storm.
Obviously decrease the amount, like 0.5% haste for each msw spent. for 15 seconds, reduce the duration if too strong so cycles are shorter.