Did you know that hunter has morePoisonous and Immune class-specific cards than other class? But you've probably seen only a very few, because they're mostly pretty clunky, or under-supported, or under-appreciated, or misunderstood.
Right now in Standard, the immunity standout of all-time (for hunters, anyway) is back: Candleshot. So much better than Gladiator's Longbow (a card as a Hearthstone newbie, I tried to combo with Brann Bronzebeard and Captain Greenskin to very little effect). Is the Longbow better or worse than Stablemaster? I'm not sure, but Stablemaster is one of just three hunter cards I've refused to craft so far.
Second-best immunity card probably goes to Ramming Mount, which is probably still fresh in memory from all the face hunters from the previous expansion. But a personal favorite of mine has been Bestial Wrath, which I've used so often in Knuckles combos. Ace Hunter Kreen was a bit of a disappointment, and didn't see much play in either hunter or demon hunter.
I love Urchin Spines in theory, but without Bola Shot or Grievous Bite, I'd rather have Toxic Arrow back in Standard, to be combined with Pufferfist. Historically, Toxic Arrow was pretty meh, but before Dreadscale plus Serpentbloom became the thing, there was Unstable Ghoul plus Toxic Arrow. And for a while, Venomizer plus Missile Launcher was de rigueur. Any of which was heaps better than Dreadscale plus Acidmaw. (Even though it doesn't have the keyword, Acidmaw basically gives all damage Poisonous.)
With all these poisonous and immunity effects, you'd think that hunters would have had a popular, competitive, control archetype available to it at some point in Hearthstone's history. But even when the effects aren't simply clunky, control has always been a few cards short of being properly supported.