Having recently completed some of the The Dark Below story missions in Destiny, Eris Morn gave me a special legendary fusion rifle, the Murmur.
It says that it can toggle between arc and solar damage, but I've pressed every button and combination I can think of and haven't had any success.
How do I toggle the elemental trait of the Murmur?
Best Answer
You have to go into the weapon's upgrade screen and toggle it manually. Should be unlocked right from the start.