Same here. I've also tried the non-heroic version (just in case the description is wrong), but it didn't trigger either.
Favoriten 2019 moment:
The Hunterace vs Viper match in the finals of the HCT World Championship. Probably the most exciting match in the history of Hearthstone.
Looking forward to in 2020:
My favotie Uldum moment is everytime i hear the voice line of Reno the Relicologist. MAGIC!
My favorite card is Plague of Murlocs, because it is the perfect counter to big priest in wild.