You can't earn in an RNG game. There's no such thing. Destiny has a few exceptions and these aw he only thing that you can actually "earn" [i]-vendor items(crucible, vanguard, factions, xur, iron banner, queens wrath, all of those) -exotic bounties(thorn, invective, bad juju, super good advice, pocket infinity) -the strangers rifle (the gun you get for defeating the story) [/i] That's it. Nothing else. No nightfall loot, not even raid loot. Because they all drop randomly.