i am not exaggerating when i say that i have stored up engrams, and checked for it, no less than 3,000 times since the game launched, and i have never seen it once, and also have never gotten it
on the flip side, "sweet business" is always in every single engram, in the first square, but i've never gotten it either, i'd just like a 100% confirmation whether or not BOREALIS shows up in the exotic preview screen, being that it is an "exclusive exotic"
i haven't even seen it; literally checking every 5 minutes, 8 hours a day, for a month
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If you're on Xbox, then no. But even previewing the engram doesn't show you what you'll get. They're just examples