Not only are you able to swap between the different types of elemental damage, you can do this on the fly. (destinynewshub.com)
Combine weapons with elemental energy in order to create different weapons. (kickstarter.com)
The game's arms come in all different shapes, weights, and sizes, and each offers up different types of elemental damage and reach distance, meaning experimentation is very much encouraged. (gameplanet.com.au)