My luck is pure shit this week. Xur selling shit exotics and I have to waste shards on them since I don’t have them, try my luck with a fated engram only to get a warlock Aeon gauntlet. Seriously...who the F uses it!? Bright side is I got 15 shards back. Not doing fated engram again cause odds are I’m going to get Fighting Lion.
Remember, the engram will always give you something new as long as you have something to find for the class you have equipped, and as long as it wasn't added in the annual pass (since those are not in Xur's loot pool yet).