I am a level 20 Titan. The day I beat the game (Saturday) I have been having trouble finding good gear and weapons. It seemed all of the engrams just disappeared. I've only found 2 gauntlets with light and they were only +7 and +8.
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You won't find good gear for a while and when you do it'll suck keep playing strikes until you get higher light level gear and then keep playing more strikes until you start getting legendaries