Need some guidance from my fellow guardians. Im a big fan of scout rifles, and my absolute favorite class is my Voidwalker. I have only enough stramge coins for one purchase this week and I am torn between this exotic primary or the ability to chain supers. Is the obsidian mind a must have for pro Voidwalkers? What would you choose if you were in my boots? (My IB boots.) Edit: Bought the helmet. Thanks everybody for the advice, it was fun.