Uh huh, that's orange Ber Rune ... but it's in 1.11b!
This wildly tops my best rune drop since my restart (Lem from Mephisto) but also wildly tops my all time best rune drop from outside 1.13+ (a few Vex runes from various patches). And of course there's the delicious irony of finding what you're looking for the moment you stop looking for it. Now don't get me wrong, the path to Enigma is still going to be a long one, but stumbling blindly into a Ber Rune within 24 hours of starting the journey is pretty darn sweet! And now, back to LK! ... may I not have used up all my luck all at once ...