Well this is a little embarrassing but I've never actually opened a riven mod before - I just kept on selling my veiled ones for an easy 20-30 plat. But now I was looking to get a riven for my Scourge so I can keep up in Sortie level content so I have a few questions:
1) When you equip a veiled riven on a weapon is the riven guaranteed to be for that weapon?
2) Do the challenges have to be done with the weapon the riven is equipped on or can they be done with say an Ivara with an exalted bow?
3) Overall on a weapon with neutral disposition is it better to just buy a good riven o