I had Spellbender up, and my opponent Hunter cast Bestial Wrath, which of course my Spellbender took to make it a 3/3 Immune. (I was unsure if it would work as Spellbender is obviously not a Beast, but that's not what the thread is really about.)
The Hunter then used Deadly Shot, which hit the Spellbender and killed it.
I am, of course, aware that the "Immunity" tooltip reads "Immune characters can't be damaged", while Deadly shot outright destroys a minion, which is why this isn't in Bug Reports. ;)
However, is this really as intended? As far as I can tell, this is the only possible scenario where an immune creature can be killed, apart from Bestial Wrath creature attacking a Vaporize Mage's face.
Would it not make more sense for Immune to read "Immune characters cannot be damaged or destroyed", to be more appropriate for being, well, immune?
(I won the game anyway, it's just a matter of interest because there are scenarios where this could lose a Hunter a game.)