There is something wrong with the "pity timer" on Un'Goro, it's been heavily observed, compared with other expansions. It's unreal how much dust Un'Goro packs create. I have more class LK legendaries than any other set, and Kobolds is quickly catching up, All of the epics you posted I had to craft and the one (P Drake) I got from a pack, well, was only one of. I stand a better chance of landing that card with a pair of Stonehills or from Elise.
Golden Flappy Bird, not bad
On the third day before Witchwood, Blizzard gave to me,
three Handlock decks,
two Molten Giants
and a winstreak to Legend Rank #3
Disclaimer: This is a fictional poem and this didn't actually happen to me.
Lyra the Sunshard. Very happy because it's my first priest legendary, and I've played since WotOG. Lyra Combo here I come :)
The last kaleidosaus and a giant anaconda, could be worse.