Another NITC with firefly and the 'one bullet does extra damage' perk dropped for me on nightfall and my friend got a thunderlord. Yeah he wanted to trade BADLY, but having a superior vision of confluence (barring solar damage) was far more worth it than an exotic machine gun that I probably wouldn't use. (i'm not slating the gun, it just doesn't interest me.) I use the multi tool whenever i'm not using gjallarhorn, it's damn near the best gun in the game.