How to make 2 handed weapons viable for classes other then Crusader

Items and Crafting
1

Simple, just make two equally strong legendary power for same skill into two separate two handed weapons.

Example:
Meteor: The Grand Vizier + The Smoldering Core( Removed the cold down for molten impact)

2

I was thinking make their legendary power X% more effective (40%?) when equipped. So you still get a benefit when cubed, but equipping it is even better.

Example: Flow of Eternity is 100% SSS damage and 60% CD in cube. When equipped, it would be 140% SSS damage and 84% CD.

Something like that.