Dual-attribute skills

Just an idea, but it would make a nice addition to the game. Not too many, but perhaps a few skills for every combination would be nice.

Elementalists, for example, could have a spell that fires chunks of molten rock at enemies that requires both fire and earth attributes...

You can even make some spells that combine 2 classes - like a flame saber spell for a W/E with sword and fire magic attributes. It would vastly increase the build possibilities

(the flame saber example would have to be a bit better than conjure flame, being exclusive to W/E characters, but you could do that by not having it strip all enchantments)

this would probly be best if the 1 of the attributes was linked to a primary attribute.

that way you could make them worth it to play that particular class hybrid.